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HBASE-21213 [hbck2] bypass leaves behind state in RegionStates when assign/unassign 

Adds override to assigns and unassigns. Changes bypass 'force'
to align calling the param 'override' instead.

Adds recursive to 'bypass', a means of calling bypass on
parent and its subprocedures (usually bypass works on
leaf nodes rippling the bypass up to parent -- recursive
has us work in the opposite direction): EXPERIMENTAL.

bypass on an assign/unassign leaves region in RIT and the
RegionStateNode loaded with the bypassed procedure. First
implementation had assign/unassign cleanup leftover state.
Second implementation, on feedback, keeps the state in place
as a fence against other Procedures assuming the region entity,
and instead adds an 'override' function that hbck2 can set on
assigns/unassigns to override the fencing.

Note that the below also converts ProcedureExceptions that
come out of the Pv2 system into DoNotRetryIOEs. It is a
little awkward because DNRIOE is in client-module, not
in procedure module. Previous, we'd just keep retrying
the bypass, etc.

M hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/Procedure.java
 Have bypass take an environment like all other methods so subclasses.
 Fix javadoc issues.

M hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.java
 Javadoc issues. Pass environment when we invoke bypass.

M hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
 Rename waitUntilNamespace... etc. to align with how these method types
 are named elsehwere .. i.e. waitFor rather than waitUntil..

M hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/RegionTransitionProcedure.java
 Cleanup message we emit when we find an exisitng procedure working
 against this entity.
 Add support for a force function which allows Assigns/Unassigns force
 ownership of the Region entity.

A hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestRegionBypass.java
 Test bypass and force.

M hbase-shell/src/main/ruby/shell/commands/list_procedures.rb
 Minor cleanup of the json output... do iso8601 timestamps.
This commit is contained in:
Michael Stack 2018-09-20 16:53:58 -07:00
parent b0ac1c6aba
commit 8fc90a23ae
No known key found for this signature in database
GPG Key ID: 9816C7FC8ACC93D2
29 changed files with 478 additions and 121 deletions
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15
hbase-client/src/main/java/org/apache/hadoop/hbase/client/HBaseHbck.java
View File

@ -102,11 +102,12 @@ public class HBaseHbck implements Hbck {
}
@Override
public List<Long> assigns(List<String> encodedRegionNames) throws IOException {
public List<Long> assigns(List<String> encodedRegionNames, boolean override)
throws IOException {
try {
MasterProtos.AssignsResponse response =
this.hbck.assigns(rpcControllerFactory.newController(),
RequestConverter.toAssignRegionsRequest(encodedRegionNames));
RequestConverter.toAssignRegionsRequest(encodedRegionNames, override));
return response.getPidList();
} catch (ServiceException se) {
LOG.debug(toCommaDelimitedString(encodedRegionNames), se);
@ -115,11 +116,12 @@ public class HBaseHbck implements Hbck {
}
@Override
public List<Long> unassigns(List<String> encodedRegionNames) throws IOException {
public List<Long> unassigns(List<String> encodedRegionNames, boolean override)
throws IOException {
try {
MasterProtos.UnassignsResponse response =
this.hbck.unassigns(rpcControllerFactory.newController(),
RequestConverter.toUnassignRegionsRequest(encodedRegionNames));
RequestConverter.toUnassignRegionsRequest(encodedRegionNames, override));
return response.getPidList();
} catch (ServiceException se) {
LOG.debug(toCommaDelimitedString(encodedRegionNames), se);
@ -132,7 +134,8 @@ public class HBaseHbck implements Hbck {
}
@Override
public List<Boolean> bypassProcedure(List<Long> pids, long waitTime, boolean force)
public List<Boolean> bypassProcedure(List<Long> pids, long waitTime, boolean override,
boolean recursive)
throws IOException {
MasterProtos.BypassProcedureResponse response = ProtobufUtil.call(
new Callable<MasterProtos.BypassProcedureResponse>() {
@ -141,7 +144,7 @@ public class HBaseHbck implements Hbck {
try {
return hbck.bypassProcedure(rpcControllerFactory.newController(),
MasterProtos.BypassProcedureRequest.newBuilder().addAllProcId(pids).
setWaitTime(waitTime).setForce(force).build());
setWaitTime(waitTime).setOverride(override).setRecursive(recursive).build());
} catch (Throwable t) {
LOG.error(pids.stream().map(i -> i.toString()).
collect(Collectors.joining(", ")), t);

35
hbase-client/src/main/java/org/apache/hadoop/hbase/client/Hbck.java
View File

@ -28,11 +28,14 @@ import org.apache.yetus.audience.InterfaceAudience;
/**
* Hbck fixup tool APIs. Obtain an instance from {@link ClusterConnection#getHbck()} and call
* {@link #close()} when done.
* <p>WARNING: the below methods can damage the cluster. For experienced users only.
* <p>WARNING: the below methods can damage the cluster. It may leave the cluster in an
* indeterminate state, e.g. region not assigned, or some hdfs files left behind. After running
* any of the below, operators may have to do some clean up on hdfs or schedule some assign
* procedures to get regions back online. DO AT YOUR OWN RISK. For experienced users only.
*
* @see ConnectionFactory
* @see ClusterConnection
* @since 2.2.0
* @since 2.0.2, 2.1.1
*/
@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.HBCK)
public interface Hbck extends Abortable, Closeable {
@ -49,22 +52,38 @@ public interface Hbck extends Abortable, Closeable {
* -- good if many Regions to online -- and it will schedule the assigns even in the case where
* Master is initializing (as long as the ProcedureExecutor is up). Does NOT call Coprocessor
* hooks.
* @param override You need to add the override for case where a region has previously been
* bypassed. When a Procedure has been bypassed, a Procedure will have completed
* but no other Procedure will be able to make progress on the target entity
* (intentionally). This override flag will override this fencing mechanism.
* @param encodedRegionNames Region encoded names; e.g. 1588230740 is the hard-coded encoding
* for hbase:meta region and de00010733901a05f5a2a3a382e27dd4 is an
* example of what a random user-space encoded Region name looks like.
*/
List<Long> assigns(List<String> encodedRegionNames) throws IOException;
List<Long> assigns(List<String> encodedRegionNames, boolean override) throws IOException;
default List<Long> assigns(List<String> encodedRegionNames) throws IOException {
return assigns(encodedRegionNames, false);
}
/**
* Like {@link Admin#unassign(byte[], boolean)} but 'raw' in that it can do more than one Region
* at a time -- good if many Regions to offline -- and it will schedule the assigns even in the
* case where Master is initializing (as long as the ProcedureExecutor is up). Does NOT call
* Coprocessor hooks.
* @param override You need to add the override for case where a region has previously been
* bypassed. When a Procedure has been bypassed, a Procedure will have completed
* but no other Procedure will be able to make progress on the target entity
* (intentionally). This override flag will override this fencing mechanism.
* @param encodedRegionNames Region encoded names; e.g. 1588230740 is the hard-coded encoding
* for hbase:meta region and de00010733901a05f5a2a3a382e27dd4 is an
* example of what a random user-space encoded Region name looks like.
*/
List<Long> unassigns(List<String> encodedRegionNames) throws IOException;
List<Long> unassigns(List<String> encodedRegionNames, boolean override) throws IOException;
default List<Long> unassigns(List<String> encodedRegionNames) throws IOException {
return unassigns(encodedRegionNames, false);
}
/**
* Bypass specified procedure and move it to completion. Procedure is marked completed but
@ -73,9 +92,13 @@ public interface Hbck extends Abortable, Closeable {
*
* @param pids of procedures to complete.
* @param waitTime wait time in ms for acquiring lock for a procedure
* @param force if force set to true, we will bypass the procedure even if it is executing.
* @param override if override set to true, we will bypass the procedure even if it is executing.
* This is for procedures which can't break out during execution (bugs?).
* @param recursive If set, if a parent procedure, we will find and bypass children and then
* the parent procedure (Dangerous but useful in case where child procedure has been 'lost').
* Does not always work. Experimental.
* @return true if procedure is marked for bypass successfully, false otherwise
*/
List<Boolean> bypassProcedure(List<Long> pids, long waitTime, boolean force) throws IOException;
List<Boolean> bypassProcedure(List<Long> pids, long waitTime, boolean override, boolean recursive)
throws IOException;
}

10
hbase-client/src/main/java/org/apache/hadoop/hbase/shaded/protobuf/RequestConverter.java
View File

@ -1883,16 +1883,18 @@ public final class RequestConverter {
// HBCK2
public static MasterProtos.AssignsRequest toAssignRegionsRequest(
List<String> encodedRegionNames) {
List<String> encodedRegionNames, boolean override) {
MasterProtos.AssignsRequest.Builder b = MasterProtos.AssignsRequest.newBuilder();
return b.addAllRegion(toEncodedRegionNameRegionSpecifiers(encodedRegionNames)).build();
return b.addAllRegion(toEncodedRegionNameRegionSpecifiers(encodedRegionNames)).
setOverride(override).build();
}
public static MasterProtos.UnassignsRequest toUnassignRegionsRequest(
List<String> encodedRegionNames) {
List<String> encodedRegionNames, boolean override) {
MasterProtos.UnassignsRequest.Builder b =
MasterProtos.UnassignsRequest.newBuilder();
return b.addAllRegion(toEncodedRegionNameRegionSpecifiers(encodedRegionNames)).build();
return b.addAllRegion(toEncodedRegionNameRegionSpecifiers(encodedRegionNames)).
setOverride(override).build();
}
private static List<RegionSpecifier> toEncodedRegionNameRegionSpecifiers(

29
hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/Procedure.java
View File

@ -145,12 +145,16 @@ public abstract class Procedure<TEnvironment> implements Comparable<Procedure<TE
private boolean lockedWhenLoading = false;
/**
* Used for force complete of the procedure without
* actually doing any logic in the procedure.
* Used for override complete of the procedure without actually doing any logic in the procedure.
* If bypass is set to true, when executing it will return null when
* {@link #doExecute(Object)} to finish the procedure and releasing any locks
* it may currently hold.
* Bypassing a procedure is not like aborting. Aborting a procedure will trigger
* {@link #doExecute(Object)} is called to finish the procedure and release any locks
* it may currently hold. The bypass does cleanup around the Procedure as far as the
* Procedure framework is concerned. It does not clean any internal state that the
* Procedure's themselves may have set. That is for the Procedures to do themselves
* when bypass is called. They should override bypass and do their cleanup in the
* overridden bypass method (be sure to call the parent bypass to ensure proper
* processing).
* <p></p>Bypassing a procedure is not like aborting. Aborting a procedure will trigger
* a rollback. And since the {@link #abort(Object)} method is overrideable
* Some procedures may have chosen to ignore the aborting.
*/
@ -175,12 +179,15 @@ public abstract class Procedure<TEnvironment> implements Comparable<Procedure<TE
}
/**
* set the bypass to true
* Only called in {@link ProcedureExecutor#bypassProcedure(long, long, boolean)} for now,
* DO NOT use this method alone, since we can't just bypass
* one single procedure. We need to bypass its ancestor too. So making it package private
* Set the bypass to true.
* Only called in {@link ProcedureExecutor#bypassProcedure(long, long, boolean)} for now.
* DO NOT use this method alone, since we can't just bypass one single procedure. We need to
* bypass its ancestor too. If your Procedure has set state, it needs to undo it in here.
* @param env Current environment. May be null because of context; e.g. pretty-printing
* procedure WALs where there is no 'environment' (and where Procedures that require
* an 'environment' won't be run.
*/
void bypass() {
protected void bypass(TEnvironment env) {
this.bypass = true;
}
@ -706,7 +713,7 @@ public abstract class Procedure<TEnvironment> implements Comparable<Procedure<TE
/**
* Will only be called when loading procedures from procedure store, where we need to record
* whether the procedure has already held a lock. Later we will call
* {@link #doAcquireLock(Object)} to actually acquire the lock.
* {@link #doAcquireLock(Object, ProcedureStore)} to actually acquire the lock.
*/
final void lockedWhenLoading() {
this.lockedWhenLoading = true;

54
hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/ProcedureExecutor.java
View File

@ -306,7 +306,7 @@ public class ProcedureExecutor<TEnvironment> {
private Configuration conf;
/**
* Created in the {@link #start(int, boolean)} method. Destroyed in {@link #join()} (FIX! Doing
* Created in the {@link #init(int, boolean)} method. Destroyed in {@link #join()} (FIX! Doing
* resource handling rather than observing in a #join is unexpected).
* Overridden when we do the ProcedureTestingUtility.testRecoveryAndDoubleExecution trickery
* (Should be ok).
@ -314,7 +314,7 @@ public class ProcedureExecutor<TEnvironment> {
private ThreadGroup threadGroup;
/**
* Created in the {@link #start(int, boolean)} method. Terminated in {@link #join()} (FIX! Doing
* Created in the {@link #init(int, boolean)} method. Terminated in {@link #join()} (FIX! Doing
* resource handling rather than observing in a #join is unexpected).
* Overridden when we do the ProcedureTestingUtility.testRecoveryAndDoubleExecution trickery
* (Should be ok).
@ -322,7 +322,7 @@ public class ProcedureExecutor<TEnvironment> {
private CopyOnWriteArrayList<WorkerThread> workerThreads;
/**
* Created in the {@link #start(int, boolean)} method. Terminated in {@link #join()} (FIX! Doing
* Created in the {@link #init(int, boolean)} method. Terminated in {@link #join()} (FIX! Doing
* resource handling rather than observing in a #join is unexpected).
* Overridden when we do the ProcedureTestingUtility.testRecoveryAndDoubleExecution trickery
* (Should be ok).
@ -966,7 +966,7 @@ public class ProcedureExecutor<TEnvironment> {
* Bypass a procedure. If the procedure is set to bypass, all the logic in
* execute/rollback will be ignored and it will return success, whatever.
* It is used to recover buggy stuck procedures, releasing the lock resources
* and letting other procedures to run. Bypassing one procedure (and its ancestors will
* and letting other procedures run. Bypassing one procedure (and its ancestors will
* be bypassed automatically) may leave the cluster in a middle state, e.g. region
* not assigned, or some hdfs files left behind. After getting rid of those stuck procedures,
* the operators may have to do some clean up on hdfs or schedule some assign procedures
@ -993,34 +993,38 @@ public class ProcedureExecutor<TEnvironment> {
* there. We need to restart the master after bypassing, and letting the problematic
* procedure to execute wth bypass=true, so in that condition, the procedure can be
* successfully bypassed.
* @param recursive We will do an expensive search for children of each pid. EXPENSIVE!
* @return true if bypass success
* @throws IOException IOException
*/
public List<Boolean> bypassProcedure(List<Long> pids, long lockWait, boolean force)
public List<Boolean> bypassProcedure(List<Long> pids, long lockWait, boolean force,
boolean recursive)
throws IOException {
List<Boolean> result = new ArrayList<Boolean>(pids.size());
for(long pid: pids) {
result.add(bypassProcedure(pid, lockWait, force));
result.add(bypassProcedure(pid, lockWait, force, recursive));
}
return result;
}
boolean bypassProcedure(long pid, long lockWait, boolean force) throws IOException {
Procedure<TEnvironment> procedure = getProcedure(pid);
boolean bypassProcedure(long pid, long lockWait, boolean override, boolean recursive)
throws IOException {
final Procedure<TEnvironment> procedure = getProcedure(pid);
if (procedure == null) {
LOG.debug("Procedure with id={} does not exist, skipping bypass", pid);
LOG.debug("Procedure pid={} does not exist, skipping bypass", pid);
return false;
}
LOG.debug("Begin bypass {} with lockWait={}, force={}", procedure, lockWait, force);
LOG.debug("Begin bypass {} with lockWait={}, override={}, recursive={}",
procedure, lockWait, override, recursive);
IdLock.Entry lockEntry = procExecutionLock.tryLockEntry(procedure.getProcId(), lockWait);
if (lockEntry == null && !force) {
if (lockEntry == null && !override) {
LOG.debug("Waited {} ms, but {} is still running, skipping bypass with force={}",
lockWait, procedure, force);
lockWait, procedure, override);
return false;
} else if (lockEntry == null) {
LOG.debug("Waited {} ms, but {} is still running, begin bypass with force={}",
lockWait, procedure, force);
lockWait, procedure, override);
}
try {
// check whether the procedure is already finished
@ -1030,9 +1034,30 @@ public class ProcedureExecutor<TEnvironment> {
}
if (procedure.hasChildren()) {
if (recursive) {
// EXPENSIVE. Checks each live procedure of which there could be many!!!
// Is there another way to get children of a procedure?
LOG.info("Recursive bypass on children of pid={}", procedure.getProcId());
this.procedures.forEachValue(1 /*Single-threaded*/,
// Transformer
v -> {
return v.getParentProcId() == procedure.getProcId()? v: null;
},
// Consumer
v -> {
boolean result = false;
IOException ioe = null;
try {
result = bypassProcedure(v.getProcId(), lockWait, override, recursive);
} catch (IOException e) {
LOG.warn("Recursive bypass of pid={}", v.getProcId(), e);
}
});
} else {
LOG.debug("{} has children, skipping bypass", procedure);
return false;
}
}
// If the procedure has no parent or no child, we are safe to bypass it in whatever state
if (procedure.hasParent() && procedure.getState() != ProcedureState.RUNNABLE
@ -1041,6 +1066,7 @@ public class ProcedureExecutor<TEnvironment> {
LOG.debug("Bypassing procedures in RUNNABLE, WAITING and WAITING_TIMEOUT states "
+ "(with no parent), {}",
procedure);
// Question: how is the bypass done here?
return false;
}
@ -1050,7 +1076,7 @@ public class ProcedureExecutor<TEnvironment> {
Procedure current = procedure;
while (current != null) {
LOG.debug("Bypassing {}", current);
current.bypass();
current.bypass(getEnvironment());
store.update(procedure);
long parentID = current.getParentProcId();
current = getProcedure(parentID);

2
hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/ProcedureUtil.java
View File

@ -272,7 +272,7 @@ public final class ProcedureUtil {
}
if (proto.getBypass()) {
proc.bypass();
proc.bypass(null);
}
ProcedureStateSerializer serializer = null;

6
hbase-procedure/src/main/java/org/apache/hadoop/hbase/procedure2/RemoteProcedureException.java
View File

@ -21,7 +21,6 @@ import java.io.IOException;
import org.apache.hadoop.ipc.RemoteException;
import org.apache.yetus.audience.InterfaceAudience;
import org.apache.yetus.audience.InterfaceStability;
import org.apache.hadoop.hbase.shaded.protobuf.generated.ErrorHandlingProtos.ForeignExceptionMessage;
import org.apache.hadoop.hbase.util.ForeignExceptionUtil;
@ -37,7 +36,6 @@ import org.apache.hadoop.hbase.util.ForeignExceptionUtil;
* their stacks traces and messages overridden to reflect the original 'remote' exception.
*/
@InterfaceAudience.Private
@InterfaceStability.Evolving
@SuppressWarnings("serial")
public class RemoteProcedureException extends ProcedureException {
@ -74,6 +72,10 @@ public class RemoteProcedureException extends ProcedureException {
return new Exception(cause);
}
// NOTE: Does not throw DoNotRetryIOE because it does not
// have access (DNRIOE is in the client module). Use
// MasterProcedureUtil.unwrapRemoteIOException if need to
// throw DNRIOE.
public IOException unwrapRemoteIOException() {
final Exception cause = unwrapRemoteException();
if (cause instanceof IOException) {

23
hbase-procedure/src/test/java/org/apache/hadoop/hbase/procedure2/TestProcedureBypass.java
View File

@ -87,7 +87,7 @@ public class TestProcedureBypass {
long id = procExecutor.submitProcedure(proc);
Thread.sleep(500);
//bypass the procedure
assertTrue(procExecutor.bypassProcedure(id, 30000, false));
assertTrue(procExecutor.bypassProcedure(id, 30000, false, false));
htu.waitFor(5000, () -> proc.isSuccess() && proc.isBypass());
LOG.info("{} finished", proc);
}
@ -98,7 +98,7 @@ public class TestProcedureBypass {
long id = procExecutor.submitProcedure(proc);
Thread.sleep(500);
//bypass the procedure
assertTrue(procExecutor.bypassProcedure(id, 1000, true));
assertTrue(procExecutor.bypassProcedure(id, 1000, true, false));
//Since the procedure is stuck there, we need to restart the executor to recovery.
ProcedureTestingUtility.restart(procExecutor);
htu.waitFor(5000, () -> proc.isSuccess() && proc.isBypass());
@ -114,12 +114,24 @@ public class TestProcedureBypass {
.size() > 0);
SuspendProcedure suspendProcedure = (SuspendProcedure)procExecutor.getProcedures().stream()
.filter(p -> p.getParentProcId() == rootId).collect(Collectors.toList()).get(0);
assertTrue(procExecutor.bypassProcedure(suspendProcedure.getProcId(), 1000, false));
assertTrue(procExecutor.bypassProcedure(suspendProcedure.getProcId(), 1000, false, false));
htu.waitFor(5000, () -> proc.isSuccess() && proc.isBypass());
LOG.info("{} finished", proc);
}
@Test
public void testBypassingProcedureWithParentRecursive() throws Exception {
final RootProcedure proc = new RootProcedure();
long rootId = procExecutor.submitProcedure(proc);
htu.waitFor(5000, () -> procExecutor.getProcedures().stream()
.filter(p -> p.getParentProcId() == rootId).collect(Collectors.toList())
.size() > 0);
SuspendProcedure suspendProcedure = (SuspendProcedure)procExecutor.getProcedures().stream()
.filter(p -> p.getParentProcId() == rootId).collect(Collectors.toList()).get(0);
assertTrue(procExecutor.bypassProcedure(rootId, 1000, false, true));
htu.waitFor(5000, () -> proc.isSuccess() && proc.isBypass());
LOG.info("{} finished", proc);
}
@AfterClass
public static void tearDown() throws Exception {
@ -179,7 +191,4 @@ public class TestProcedureBypass {
}
}
}
}

6
hbase-protocol-shaded/src/main/protobuf/Master.proto
View File

@ -99,6 +99,7 @@ message MergeTableRegionsResponse {
message AssignRegionRequest {
required RegionSpecifier region = 1;
optional bool override = 2 [default = false];
}
message AssignRegionResponse {
@ -1005,6 +1006,7 @@ message SetTableStateInMetaRequest {
// Region at a time.
message AssignsRequest {
repeated RegionSpecifier region = 1;
optional bool override = 2 [default = false];
}
/** Like Admin's AssignRegionResponse except it can
@ -1019,6 +1021,7 @@ message AssignsResponse {
*/
message UnassignsRequest {
repeated RegionSpecifier region = 1;
optional bool override = 2 [default = false];
}
/** Like Admin's UnassignRegionResponse except it can
@ -1031,7 +1034,8 @@ message UnassignsResponse {
message BypassProcedureRequest {
repeated uint64 proc_id = 1;
optional uint64 waitTime = 2; // wait time in ms to acquire lock on a procedure
optional bool force = 3; // if true, procedure is marked for bypass even if its executing
optional bool override = 3 [default = false]; // if true, procedure is marked for bypass even if its executing
optional bool recursive = 4;
}
message BypassProcedureResponse {

2
hbase-protocol-shaded/src/main/protobuf/MasterProcedure.proto
View File

@ -330,6 +330,7 @@ message AssignRegionStateData {
optional ServerName target_server = 4;
// Current attempt index used for expotential backoff when stuck
optional int32 attempt = 5;
optional bool override = 6 [default = false];
}
message UnassignRegionStateData {
@ -341,6 +342,7 @@ message UnassignRegionStateData {
// This is the server currently hosting the Region, the
// server we will send the unassign rpc too.
optional ServerName hosting_server = 5;
// We hijacked an old param named 'force' and use it as 'override'.
optional bool force = 4 [default = false];
optional bool remove_after_unassigning = 6 [default = false];
// Current attempt index used for expotential backoff when stuck

3
hbase-rsgroup/src/main/java/org/apache/hadoop/hbase/rsgroup/RSGroupInfoManagerImpl.java
View File

@ -65,6 +65,7 @@ import org.apache.hadoop.hbase.master.MasterServices;
import org.apache.hadoop.hbase.master.ServerListener;
import org.apache.hadoop.hbase.master.TableStateManager;
import org.apache.hadoop.hbase.master.assignment.RegionStates.RegionStateNode;
import org.apache.hadoop.hbase.master.procedure.MasterProcedureUtil;
import org.apache.hadoop.hbase.net.Address;
import org.apache.hadoop.hbase.procedure2.Procedure;
import org.apache.hadoop.hbase.protobuf.ProtobufMagic;
@ -873,7 +874,7 @@ final class RSGroupInfoManagerImpl implements RSGroupInfoManager {
Procedure<?> result = masterServices.getMasterProcedureExecutor().getResult(procId);
if (result != null && result.isFailed()) {
throw new IOException("Failed to create group table. " +
result.getException().unwrapRemoteIOException());
MasterProcedureUtil.unwrapRemoteIOException(result));
}
}
}

3
hbase-rsgroup/src/test/java/org/apache/hadoop/hbase/master/balancer/TestRSGroupBasedLoadBalancer.java
View File

@ -49,6 +49,7 @@ import org.apache.hadoop.hbase.master.LoadBalancer;
import org.apache.hadoop.hbase.master.MasterServices;
import org.apache.hadoop.hbase.master.RegionPlan;
import org.apache.hadoop.hbase.master.assignment.AssignmentManager;
import org.apache.hadoop.hbase.master.assignment.RegionStates;
import org.apache.hadoop.hbase.net.Address;
import org.apache.hadoop.hbase.rsgroup.RSGroupBasedLoadBalancer;
import org.apache.hadoop.hbase.rsgroup.RSGroupInfo;
@ -569,6 +570,8 @@ public class TestRSGroupBasedLoadBalancer {
Mockito.when(services.getTableDescriptors()).thenReturn(tds);
AssignmentManager am = Mockito.mock(AssignmentManager.class);
Mockito.when(services.getAssignmentManager()).thenReturn(am);
RegionStates rss = Mockito.mock(RegionStates.class);
Mockito.when(am.getRegionStates()).thenReturn(rss);
return services;
}

8
hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
View File

@ -978,7 +978,7 @@ public class HMaster extends HRegionServer implements MasterServices {
// as procedures run -- in particular SCPs for crashed servers... One should put up hbase:meta
// if it is down. It may take a while to come online. So, wait here until meta if for sure
// available. Thats what waitUntilMetaOnline does.
if (!waitUntilMetaOnline()) {
if (!waitForMetaOnline()) {
return;
}
this.assignmentManager.joinCluster();
@ -1010,7 +1010,7 @@ public class HMaster extends HRegionServer implements MasterServices {
// Here we expect hbase:namespace to be online. See inside initClusterSchemaService.
// TODO: Fix this. Namespace is a pain being a sort-of system table. Fold it in to hbase:meta.
// isNamespace does like isMeta and waits until namespace is onlined before allowing progress.
if (!waitUntilNamespaceOnline()) {
if (!waitForNamespaceOnline()) {
return;
}
status.setStatus("Starting cluster schema service");
@ -1094,7 +1094,7 @@ public class HMaster extends HRegionServer implements MasterServices {
* and we will hold here until operator intervention.
*/
@VisibleForTesting
public boolean waitUntilMetaOnline() throws InterruptedException {
public boolean waitForMetaOnline() throws InterruptedException {
return isRegionOnline(RegionInfoBuilder.FIRST_META_REGIONINFO);
}
@ -1135,7 +1135,7 @@ public class HMaster extends HRegionServer implements MasterServices {
* @return True if namespace table is up/online.
*/
@VisibleForTesting
public boolean waitUntilNamespaceOnline() throws InterruptedException {
public boolean waitForNamespaceOnline() throws InterruptedException {
List<RegionInfo> ris = this.assignmentManager.getRegionStates().
getRegionsOfTable(TableName.NAMESPACE_TABLE_NAME);
if (ris.isEmpty()) {

23
hbase-server/src/main/java/org/apache/hadoop/hbase/master/MasterRpcServices.java
View File

@ -29,7 +29,7 @@ import java.util.List;
import java.util.Map;
import java.util.Map.Entry;
import java.util.Set;
import java.util.function.Function;
import java.util.function.BiFunction;
import java.util.stream.Collectors;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.hbase.ClusterMetricsBuilder;
@ -44,7 +44,6 @@ import org.apache.hadoop.hbase.ServerName;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.UnknownRegionException;
import org.apache.hadoop.hbase.client.ColumnFamilyDescriptor;
import org.apache.hadoop.hbase.client.Connection;
import org.apache.hadoop.hbase.client.MasterSwitchType;
import org.apache.hadoop.hbase.client.RegionInfo;
import org.apache.hadoop.hbase.client.RegionInfoBuilder;
@ -1181,7 +1180,8 @@ public class MasterRpcServices extends RSRpcServices
if (executor.isFinished(procId)) {
builder.setState(GetProcedureResultResponse.State.FINISHED);
if (result.isFailed()) {
IOException exception = result.getException().unwrapRemoteIOException();
IOException exception =
MasterProcedureUtil.unwrapRemoteIOException(result);
builder.setException(ForeignExceptionUtil.toProtoForeignException(exception));
}
byte[] resultData = result.getResult();
@ -2335,14 +2335,15 @@ public class MasterRpcServices extends RSRpcServices
* Submit the Procedure that gets created by <code>f</code>
* @return pid of the submitted Procedure.
*/
private long submitProcedure(HBaseProtos.RegionSpecifier rs, Function<RegionInfo, Procedure> f)
private long submitProcedure(HBaseProtos.RegionSpecifier rs, boolean override,
BiFunction<RegionInfo, Boolean, Procedure> f)
throws UnknownRegionException {
RegionInfo ri = getRegionInfo(rs);
long pid = Procedure.NO_PROC_ID;
if (ri == null) {
LOG.warn("No RegionInfo found to match {}", rs);
} else {
pid = this.master.getMasterProcedureExecutor().submitProcedure(f.apply(ri));
pid = this.master.getMasterProcedureExecutor().submitProcedure(f.apply(ri, override));
}
return pid;
}
@ -2362,9 +2363,10 @@ public class MasterRpcServices extends RSRpcServices
MasterProtos.AssignsResponse.Builder responseBuilder =
MasterProtos.AssignsResponse.newBuilder();
try {
boolean override = request.getOverride();
for (HBaseProtos.RegionSpecifier rs: request.getRegionList()) {
long pid = submitProcedure(rs,
r -> this.master.getAssignmentManager().createAssignProcedure(r));
long pid = submitProcedure(rs, override,
(r, b) -> this.master.getAssignmentManager().createAssignProcedure(r, b));
responseBuilder.addPid(pid);
}
return responseBuilder.build();
@ -2388,9 +2390,10 @@ public class MasterRpcServices extends RSRpcServices
MasterProtos.UnassignsResponse.Builder responseBuilder =
MasterProtos.UnassignsResponse.newBuilder();
try {
boolean override = request.getOverride();
for (HBaseProtos.RegionSpecifier rs: request.getRegionList()) {
long pid = submitProcedure(rs,
ri -> this.master.getAssignmentManager().createUnassignProcedure(ri));
long pid = submitProcedure(rs, override,
(r, b) -> this.master.getAssignmentManager().createUnassignProcedure(r, b));
responseBuilder.addPid(pid);
}
return responseBuilder.build();
@ -2416,7 +2419,7 @@ public class MasterRpcServices extends RSRpcServices
try {
List<Boolean> ret =
master.getMasterProcedureExecutor().bypassProcedure(request.getProcIdList(),
request.getWaitTime(), request.getForce());
request.getWaitTime(), request.getOverride(), request.getRecursive());
return MasterProtos.BypassProcedureResponse.newBuilder().addAllBypassed(ret).build();
} catch (IOException e) {
throw new ServiceException(e);

14
hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/AssignProcedure.java
View File

@ -99,12 +99,16 @@ public class AssignProcedure extends RegionTransitionProcedure {
}
public AssignProcedure(final RegionInfo regionInfo) {
super(regionInfo);
this.targetServer = null;
this(regionInfo, null);
}
public AssignProcedure(final RegionInfo regionInfo, final ServerName destinationServer) {
super(regionInfo);
this(regionInfo, destinationServer, false);
}
public AssignProcedure(final RegionInfo regionInfo, final ServerName destinationServer,
boolean override) {
super(regionInfo, override);
this.targetServer = destinationServer;
}
@ -138,6 +142,9 @@ public class AssignProcedure extends RegionTransitionProcedure {
if (getAttempt() > 0) {
state.setAttempt(getAttempt());
}
if (isOverride()) {
state.setOverride(isOverride());
}
serializer.serialize(state.build());
}
@ -148,6 +155,7 @@ public class AssignProcedure extends RegionTransitionProcedure {
setTransitionState(state.getTransitionState());
setRegionInfo(ProtobufUtil.toRegionInfo(state.getRegionInfo()));
forceNewPlan = state.getForceNewPlan();
setOverride(state.getOverride());
if (state.hasTargetServer()) {
this.targetServer = ProtobufUtil.toServerName(state.getTargetServer());
}

27
hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/AssignmentManager.java
View File

@ -677,26 +677,37 @@ public class AssignmentManager implements ServerListener {
* Called by things like DisableTableProcedure to get a list of UnassignProcedure
* to unassign the regions of the table.
*/
public UnassignProcedure[] createUnassignProcedures(final TableName tableName) {
return createUnassignProcedures(regionStates.getTableRegionStateNodes(tableName));
public AssignProcedure createAssignProcedure(final RegionInfo regionInfo) {
return createAssignProcedure(regionInfo, null, false);
}
public AssignProcedure createAssignProcedure(final RegionInfo regionInfo) {
AssignProcedure proc = new AssignProcedure(regionInfo);
proc.setOwner(getProcedureEnvironment().getRequestUser().getShortName());
return proc;
public AssignProcedure createAssignProcedure(final RegionInfo regionInfo, boolean override) {
return createAssignProcedure(regionInfo, null, override);
}
public AssignProcedure createAssignProcedure(final RegionInfo regionInfo,
final ServerName targetServer) {
AssignProcedure proc = new AssignProcedure(regionInfo, targetServer);
ServerName targetServer) {
return createAssignProcedure(regionInfo, targetServer, false);
}
public AssignProcedure createAssignProcedure(final RegionInfo regionInfo,
final ServerName targetServer, boolean override) {
AssignProcedure proc = new AssignProcedure(regionInfo, targetServer, override);
proc.setOwner(getProcedureEnvironment().getRequestUser().getShortName());
return proc;
}
public UnassignProcedure createUnassignProcedure(final RegionInfo regionInfo) {
return createUnassignProcedure(regionInfo, null, false);
}
public UnassignProcedure createUnassignProcedure(final RegionInfo regionInfo,
boolean override) {
return createUnassignProcedure(regionInfo, null, override);
}
public UnassignProcedure[] createUnassignProcedures(final TableName tableName) {
return createUnassignProcedures(regionStates.getTableRegionStateNodes(tableName));
}
UnassignProcedure createUnassignProcedure(final RegionInfo regionInfo,

68
hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/RegionTransitionProcedure.java
View File

@ -111,6 +111,12 @@ public abstract class RegionTransitionProcedure
*/
private RegionInfo regionInfo;
/**
* this data member must also be persisted.
* @see #regionInfo
*/
private boolean override;
/**
* Like {@link #regionInfo}, the expectation is that subclasses persist the value of this
* data member. It is used doing backoff when Procedure gets stuck.
@ -120,8 +126,9 @@ public abstract class RegionTransitionProcedure
// Required by the Procedure framework to create the procedure on replay
public RegionTransitionProcedure() {}
public RegionTransitionProcedure(final RegionInfo regionInfo) {
public RegionTransitionProcedure(final RegionInfo regionInfo, boolean override) {
this.regionInfo = regionInfo;
this.override = override;
}
@VisibleForTesting
@ -134,12 +141,24 @@ public abstract class RegionTransitionProcedure
* {@link #deserializeStateData(ProcedureStateSerializer)} method. Expectation is that
* subclasses will persist `regioninfo` in their
* {@link #serializeStateData(ProcedureStateSerializer)} method and then restore `regionInfo` on
* deserialization by calling.
* deserialization by calling this.
*/
protected void setRegionInfo(final RegionInfo regionInfo) {
this.regionInfo = regionInfo;
}
/**
* This setter is for subclasses to call in their
* {@link #deserializeStateData(ProcedureStateSerializer)} method. Expectation is that
* subclasses will persist `override` in their
* {@link #serializeStateData(ProcedureStateSerializer)} method and then restore `override` on
* deserialization by calling this.
*/
protected void setOverride(boolean override) {
this.override = override;
}
/**
* This setter is for subclasses to call in their
* {@link #deserializeStateData(ProcedureStateSerializer)} method.
@ -170,6 +189,11 @@ public abstract class RegionTransitionProcedure
sb.append(getTableName());
sb.append(", region=");
sb.append(getRegionInfo() == null? null: getRegionInfo().getEncodedName());
if (isOverride()) {
// Only log if set.
sb.append(", override=");
sb.append(isOverride());
}
}
public RegionStateNode getRegionState(final MasterProcedureEnv env) {
@ -308,13 +332,20 @@ public abstract class RegionTransitionProcedure
final AssignmentManager am = env.getAssignmentManager();
final RegionStateNode regionNode = getRegionState(env);
if (!am.addRegionInTransition(regionNode, this)) {
String msg = String.format(
"There is already another procedure running on this region this=%s owner=%s",
this, regionNode.getProcedure());
LOG.warn(msg + " " + this + "; " + regionNode.toShortString());
if (this.isOverride()) {
LOG.info("{} owned by pid={}, OVERRIDDEN by 'this' (pid={}, override=true).",
regionNode.getRegionInfo().getEncodedName(),
regionNode.getProcedure().getProcId(), getProcId());
regionNode.unsetProcedure(regionNode.getProcedure());
} else {
String msg = String.format("%s owned by pid=%d, CANNOT run 'this' (pid=%d).",
regionNode.getRegionInfo().getEncodedName(),
regionNode.getProcedure().getProcId(), getProcId());
LOG.warn(msg);
setAbortFailure(getClass().getSimpleName(), msg);
return null;
}
}
try {
boolean retry;
do {
@ -425,8 +456,12 @@ public abstract class RegionTransitionProcedure
// TODO: Revisit this and move it to the executor
if (env.getProcedureScheduler().waitRegion(this, getRegionInfo())) {
try {
LOG.debug(LockState.LOCK_EVENT_WAIT + " pid=" + getProcId() + " " +
// Enable TRACE on this class to see lock dump. Can be really large when cluster is big
// or big tables being enabled/disabled.
if (LOG.isTraceEnabled()) {
LOG.trace("{} pid={} {}", LockState.LOCK_EVENT_WAIT, getProcId(),
env.getProcedureScheduler().dumpLocks());
}
} catch (IOException e) {
// ignore, just for logging
}
@ -469,4 +504,23 @@ public abstract class RegionTransitionProcedure
// should not be called for region operation until we modified the open/close region procedure
throw new UnsupportedOperationException();
}
@Override
protected void bypass(MasterProcedureEnv env) {
// This override is just so I can write a note on how bypass is done in
// RTP. For RTP procedures -- i.e. assign/unassign -- if bypass is called,
// we intentionally do NOT cleanup our state. We leave a reference to the
// bypassed Procedure in the RegionStateNode. Doing this makes it so the
// RSN is in an odd state. The bypassed Procedure is finished but no one
// else can make progress on this RSN entity (see the #execute above where
// we check the RSN to see if an already registered procedure and if so,
// we exit without proceeding). This is done to intentionally block
// subsequent Procedures from running. Only a Procedure with the 'override' flag
// set can overwrite the RSN and make progress.
super.bypass(env);
}
boolean isOverride() {
return this.override;
}
}

14
hbase-server/src/main/java/org/apache/hadoop/hbase/master/assignment/UnassignProcedure.java
View File

@ -84,10 +84,6 @@ public class UnassignProcedure extends RegionTransitionProcedure {
*/
protected volatile ServerName destinationServer;
// TODO: should this be in a reassign procedure?
// ...and keep unassign for 'disable' case?
private boolean force;
/**
* Whether deleting the region from in-memory states after unassigning the region.
*/
@ -109,12 +105,11 @@ public class UnassignProcedure extends RegionTransitionProcedure {
}
public UnassignProcedure(final RegionInfo regionInfo, final ServerName hostingServer,
final ServerName destinationServer, final boolean force,
final ServerName destinationServer, final boolean override,
final boolean removeAfterUnassigning) {
super(regionInfo);
super(regionInfo, override);
this.hostingServer = hostingServer;
this.destinationServer = destinationServer;
this.force = force;
this.removeAfterUnassigning = removeAfterUnassigning;
// we don't need REGION_TRANSITION_QUEUE, we jump directly to sending the request
@ -147,7 +142,7 @@ public class UnassignProcedure extends RegionTransitionProcedure {
if (this.destinationServer != null) {
state.setDestinationServer(ProtobufUtil.toServerName(destinationServer));
}
if (force) {
if (isOverride()) {
state.setForce(true);
}
if (removeAfterUnassigning) {
@ -167,7 +162,8 @@ public class UnassignProcedure extends RegionTransitionProcedure {
setTransitionState(state.getTransitionState());
setRegionInfo(ProtobufUtil.toRegionInfo(state.getRegionInfo()));
this.hostingServer = ProtobufUtil.toServerName(state.getHostingServer());
force = state.getForce();
// The 'force' flag is the override flag in unassign.
setOverride(state.getForce());
if (state.hasDestinationServer()) {
this.destinationServer = ProtobufUtil.toServerName(state.getDestinationServer());
}

11
hbase-server/src/main/java/org/apache/hadoop/hbase/master/balancer/BaseLoadBalancer.java
View File

@ -51,6 +51,8 @@ import org.apache.hadoop.hbase.master.LoadBalancer;
import org.apache.hadoop.hbase.master.MasterServices;
import org.apache.hadoop.hbase.master.RackManager;
import org.apache.hadoop.hbase.master.RegionPlan;
import org.apache.hadoop.hbase.master.assignment.AssignmentManager;
import org.apache.hadoop.hbase.master.assignment.RegionStates;
import org.apache.hadoop.hbase.master.balancer.BaseLoadBalancer.Cluster.Action.Type;
import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting;
import org.apache.hbase.thirdparty.com.google.common.base.Joiner;
@ -1456,12 +1458,15 @@ public abstract class BaseLoadBalancer implements LoadBalancer {
ServerName oldServerName = entry.getValue();
// In the current set of regions even if one has region replica let us go with
// getting the entire snapshot
if (this.services != null && this.services.getAssignmentManager() != null) { // for tests
if (!hasRegionReplica && this.services.getAssignmentManager().getRegionStates()
.isReplicaAvailableForRegion(region)) {
if (this.services != null) { // for tests
AssignmentManager am = this.services.getAssignmentManager();
if (am != null) {
RegionStates rss = am.getRegionStates();
if (!hasRegionReplica && rss.isReplicaAvailableForRegion(region)) {
hasRegionReplica = true;
}
}
}
List<ServerName> localServers = new ArrayList<>();
if (oldServerName != null) {
localServers = serversByHostname.get(oldServerName.getHostnameLowerCase());

16
hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/MasterProcedureUtil.java
View File

@ -19,9 +19,12 @@ package org.apache.hadoop.hbase.master.procedure;
import java.io.IOException;
import java.util.regex.Pattern;
import org.apache.hadoop.hbase.DoNotRetryIOException;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.master.MasterServices;
import org.apache.hadoop.hbase.procedure2.Procedure;
import org.apache.hadoop.hbase.procedure2.ProcedureException;
import org.apache.hadoop.hbase.procedure2.ProcedureExecutor;
import org.apache.hadoop.hbase.security.User;
import org.apache.hadoop.hbase.util.NonceKey;
@ -176,4 +179,17 @@ public final class MasterProcedureUtil {
public static int getServerPriority(ServerProcedureInterface proc) {
return proc.hasMetaTableRegion() ? 100 : 1;
}
/**
* This is a version of unwrapRemoteIOException that can do DoNotRetryIOE.
* We need to throw DNRIOE to clients if a failed Procedure else they will
* keep trying. The default proc.getException().unwrapRemoteException
* doesn't have access to DNRIOE from the procedure2 module.
*/
public static IOException unwrapRemoteIOException(Procedure proc) {
Exception e = proc.getException().unwrapRemoteException();
// Do not retry ProcedureExceptions!
return (e instanceof ProcedureException)? new DoNotRetryIOException(e):
proc.getException().unwrapRemoteIOException();
}
}

3
hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/ProcedureDescriber.java
View File

@ -69,7 +69,8 @@ public class ProcedureDescriber {
description.put("LAST_UPDATE", new Date(proc.getLastUpdate()));
if (proc.isFailed()) {
description.put("ERRORS", proc.getException().unwrapRemoteIOException().getMessage());
description.put("ERRORS",
MasterProcedureUtil.unwrapRemoteIOException(proc).getMessage());
}
description.put("PARAMETERS", parametersToObject(proc));

2
hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/ProcedurePrepareLatch.java
View File

@ -99,7 +99,7 @@ public abstract class ProcedurePrepareLatch {
@Override
protected void countDown(final Procedure proc) {
if (proc.hasException()) {
exception = proc.getException().unwrapRemoteIOException();
exception = MasterProcedureUtil.unwrapRemoteIOException(proc);
}
latch.countDown();
}

5
hbase-server/src/main/java/org/apache/hadoop/hbase/master/procedure/ProcedureSyncWait.java
View File

@ -160,9 +160,10 @@ public final class ProcedureSyncWait {
throw new IOException("The Master is Aborting");
}
if (proc.hasException()) {
// If the procedure fails, we should always have an exception captured. Throw it.
throw proc.getException().unwrapRemoteIOException();
// Needs to be an IOE to get out of here.
if (proc.hasException()) {
throw MasterProcedureUtil.unwrapRemoteIOException(proc);
} else {
return proc.getResult();
}

4
hbase-server/src/test/java/org/apache/hadoop/hbase/TestMetaTableAccessor.java
View File

@ -108,7 +108,7 @@ public class TestMetaTableAccessor {
@Test
public void testIsMetaWhenAllHealthy() throws InterruptedException {
HMaster m = UTIL.getMiniHBaseCluster().getMaster();
assertTrue(m.waitUntilMetaOnline());
assertTrue(m.waitForMetaOnline());
}
@Test
@ -117,7 +117,7 @@ public class TestMetaTableAccessor {
int index = UTIL.getMiniHBaseCluster().getServerWithMeta();
HRegionServer rsWithMeta = UTIL.getMiniHBaseCluster().getRegionServer(index);
rsWithMeta.abort("TESTING");
assertTrue(m.waitUntilMetaOnline());
assertTrue(m.waitForMetaOnline());
}
/**

3
hbase-server/src/test/java/org/apache/hadoop/hbase/client/TestHbck.java
View File

@ -116,7 +116,8 @@ public class TestHbck {
//bypass the procedure
List<Long> pids = Arrays.<Long>asList(procId);
List<Boolean> results = TEST_UTIL.getHbck().bypassProcedure(pids, 30000, false);
List<Boolean> results =
TEST_UTIL.getHbck().bypassProcedure(pids, 30000, false, false);
assertTrue("Failed to by pass procedure!", results.get(0));
TEST_UTIL.waitFor(5000, () -> proc.isSuccess() && proc.isBypass());
LOG.info("{} finished", proc);

181
hbase-server/src/test/java/org/apache/hadoop/hbase/master/assignment/TestRegionBypass.java Normal file
View File

@ -0,0 +1,181 @@
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.hadoop.hbase.master.assignment;
import static org.junit.Assert.assertTrue;
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import org.apache.hadoop.hbase.HBaseClassTestRule;
import org.apache.hadoop.hbase.HBaseTestingUtility;
import org.apache.hadoop.hbase.TableName;
import org.apache.hadoop.hbase.client.Admin;
import org.apache.hadoop.hbase.client.RegionInfo;
import org.apache.hadoop.hbase.master.procedure.MasterProcedureEnv;
import org.apache.hadoop.hbase.procedure2.Procedure;
import org.apache.hadoop.hbase.shaded.protobuf.generated.MasterProcedureProtos;
import org.apache.hadoop.hbase.testclassification.LargeTests;
import org.apache.hadoop.hbase.util.Bytes;
import org.junit.AfterClass;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.ClassRule;
import org.junit.Rule;
import org.junit.Test;
import org.junit.experimental.categories.Category;
import org.junit.rules.TestName;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* Tests bypass on a region assign/unassign
*/
@Category({LargeTests.class})
public class TestRegionBypass {
private final static Logger LOG = LoggerFactory.getLogger(TestRegionBypass.class);
@ClassRule
public static final HBaseClassTestRule CLASS_RULE =
HBaseClassTestRule.forClass(TestRegionBypass.class);
@Rule
public TestName name = new TestName();
private static final HBaseTestingUtility TEST_UTIL = new HBaseTestingUtility();
private TableName tableName;
@BeforeClass
public static void startCluster() throws Exception {
TEST_UTIL.startMiniCluster(2);
}
@AfterClass
public static void stopCluster() throws Exception {
TEST_UTIL.shutdownMiniCluster();
}
@Before
public void before() throws IOException {
this.tableName = TableName.valueOf(this.name.getMethodName());
// Create a table. Has one region at least.
TEST_UTIL.createTable(this.tableName, Bytes.toBytes("cf"));
}
@Test
public void testBypass() throws IOException {
Admin admin = TEST_UTIL.getAdmin();
List<RegionInfo> regions = admin.getRegions(this.tableName);
for (RegionInfo ri: regions) {
admin.unassign(ri.getRegionName(), false);
}
List<Long> pids = new ArrayList<>(regions.size());
for (RegionInfo ri: regions) {
Procedure<MasterProcedureEnv> p = new StallingAssignProcedure(ri);
pids.add(TEST_UTIL.getHBaseCluster().getMaster().getMasterProcedureExecutor().
submitProcedure(p));
}
for (Long pid: pids) {
while (!TEST_UTIL.getHBaseCluster().getMaster().getMasterProcedureExecutor().isStarted(pid)) {
Thread.currentThread().yield();
}
}
// Call bypass on all. We should be stuck in the dispatch at this stage.
List<Procedure<MasterProcedureEnv>> ps =
TEST_UTIL.getHBaseCluster().getMaster().getMasterProcedureExecutor().getProcedures();
for (Procedure<MasterProcedureEnv> p: ps) {
if (p instanceof StallingAssignProcedure) {
List<Boolean> bs = TEST_UTIL.getHbck().
bypassProcedure(Arrays.<Long>asList(p.getProcId()), 0, false, false);
for (Boolean b: bs) {
LOG.info("BYPASSED {} {}", p.getProcId(), b);
}
}
}
// Countdown the latch so its not hanging out.
for (Procedure<MasterProcedureEnv> p: ps) {
if (p instanceof StallingAssignProcedure) {
((StallingAssignProcedure)p).latch.countDown();
}
}
// Try and assign WITHOUT override flag. Should fail!.
for (RegionInfo ri: regions) {
try {
admin.assign(ri.getRegionName());
} catch (Throwable dnrioe) {
// Expected
LOG.info("Expected {}", dnrioe);
}
}
while (!TEST_UTIL.getHBaseCluster().getMaster().getMasterProcedureExecutor().
getActiveProcIds().isEmpty()) {
Thread.currentThread().yield();
}
// Now assign with the override flag.
for (RegionInfo ri: regions) {
TEST_UTIL.getHbck().assigns(Arrays.<String>asList(ri.getEncodedName()), true);
}
while (!TEST_UTIL.getHBaseCluster().getMaster().getMasterProcedureExecutor().
getActiveProcIds().isEmpty()) {
Thread.currentThread().yield();
}
for (RegionInfo ri: regions) {
assertTrue(ri.toString(), TEST_UTIL.getMiniHBaseCluster().getMaster().getAssignmentManager().
getRegionStates().isRegionOnline(ri));
}
}
/**
* An AssignProcedure that Stalls just before the finish.
*/
public static class StallingAssignProcedure extends AssignProcedure {
public final CountDownLatch latch = new CountDownLatch(2);
public StallingAssignProcedure() {
super();
}
public StallingAssignProcedure(RegionInfo regionInfo) {
super(regionInfo);
}
@Override
void setTransitionState(MasterProcedureProtos.RegionTransitionState state) {
if (state == MasterProcedureProtos.RegionTransitionState.REGION_TRANSITION_DISPATCH) {
try {
LOG.info("LATCH2 {}", this.latch.getCount());
this.latch.await();
LOG.info("LATCH3 {}", this.latch.getCount());
} catch (InterruptedException e) {
e.printStackTrace();
}
} else if (state == MasterProcedureProtos.RegionTransitionState.REGION_TRANSITION_QUEUE) {
// Set latch.
LOG.info("LATCH1 {}", this.latch.getCount());
this.latch.countDown();
}
super.setTransitionState(state);
}
}
}

3
hbase-shell/src/main/ruby/shell/commands/list_procedures.rb
View File

@ -31,8 +31,7 @@ EOF
end
def command
formatter.header(%w[Id Name State Submitted_Time Last_Update Parameters])
formatter.header(%w[PID Name State Submitted Last_Update Parameters])
list = JSON.parse(admin.list_procedures)
list.each do |proc|
submitted_time = Time.at(Integer(proc['submittedTime'])/1000).to_s

1
hbase-shell/src/test/java/org/apache/hadoop/hbase/client/TestShell.java
View File

@ -39,5 +39,4 @@ public class TestShell extends AbstractTestShell {
// Start all ruby tests
jruby.runScriptlet(PathType.ABSOLUTE, "src/test/ruby/tests_runner.rb");
}
}

6
hbase-shell/src/test/ruby/shell/shell_test.rb
View File

@ -85,9 +85,9 @@ class ShellTest < Test::Unit::TestCase
define_test "Shell::Shell interactive mode should not throw" do
# incorrect number of arguments
@shell.command('create', 'foo')
@shell.command('create', 'foo', 'family_1')
@shell.command('create', 'nothrow_table')
@shell.command('create', 'nothrow_table', 'family_1')
# create a table that exists
@shell.command('create', 'foo', 'family_1')
@shell.command('create', 'nothrow_table', 'family_1')
end
end