YARN-5400. Light cleanup in ZKRMStateStore (templedf via rkanter)

(cherry picked from commit bcb2528a51)
This commit is contained in:
Robert Kanter 2016-09-28 14:56:41 -07:00
parent baf8aac05c
commit bc91e33d5e
3 changed files with 161 additions and 120 deletions

View File

@ -18,6 +18,7 @@
package org.apache.hadoop.yarn.server.resourcemanager;
import java.io.IOException;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.classification.InterfaceAudience;
@ -37,9 +38,12 @@ public class RMZKUtils {
private static final Log LOG = LogFactory.getLog(RMZKUtils.class);
/**
* Utility method to fetch the ZK ACLs from the configuration
* Utility method to fetch the ZK ACLs from the configuration.
*
* @throws java.io.IOException if the Zookeeper ACLs configuration file
* cannot be read
*/
public static List<ACL> getZKAcls(Configuration conf) throws Exception {
public static List<ACL> getZKAcls(Configuration conf) throws IOException {
// Parse authentication from configuration.
String zkAclConf =
conf.get(YarnConfiguration.RM_ZK_ACL,
@ -47,17 +51,20 @@ public class RMZKUtils {
try {
zkAclConf = ZKUtil.resolveConfIndirection(zkAclConf);
return ZKUtil.parseACLs(zkAclConf);
} catch (Exception e) {
} catch (IOException | ZKUtil.BadAclFormatException e) {
LOG.error("Couldn't read ACLs based on " + YarnConfiguration.RM_ZK_ACL);
throw e;
}
}
/**
* Utility method to fetch ZK auth info from the configuration
* Utility method to fetch ZK auth info from the configuration.
*
* @throws java.io.IOException if the Zookeeper ACLs configuration file
* cannot be read
*/
public static List<ZKUtil.ZKAuthInfo> getZKAuths(Configuration conf)
throws Exception {
throws IOException {
String zkAuthConf = conf.get(YarnConfiguration.RM_ZK_AUTH);
try {
zkAuthConf = ZKUtil.resolveConfIndirection(zkAuthConf);
@ -66,7 +73,7 @@ public class RMZKUtils {
} else {
return Collections.emptyList();
}
} catch (Exception e) {
} catch (IOException | ZKUtil.BadAuthFormatException e) {
LOG.error("Couldn't read Auth based on " + YarnConfiguration.RM_ZK_AUTH);
throw e;
}

View File

@ -305,7 +305,7 @@ public class ResourceManager extends CompositeService implements Recoverable {
}
public CuratorFramework createAndStartCurator(Configuration conf)
throws Exception {
throws IOException {
String zkHostPort = conf.get(YarnConfiguration.RM_ZK_ADDRESS);
if (zkHostPort == null) {
throw new YarnRuntimeException(

View File

@ -56,7 +56,6 @@ import org.apache.hadoop.yarn.server.resourcemanager.recovery.records.impl.pb.AM
import org.apache.hadoop.yarn.server.resourcemanager.recovery.records.impl.pb.ApplicationAttemptStateDataPBImpl;
import org.apache.hadoop.yarn.server.resourcemanager.recovery.records.impl.pb.ApplicationStateDataPBImpl;
import org.apache.hadoop.yarn.server.resourcemanager.recovery.records.impl.pb.EpochPBImpl;
import org.apache.hadoop.yarn.util.ConverterUtils;
import org.apache.zookeeper.CreateMode;
import org.apache.zookeeper.ZooDefs;
import org.apache.zookeeper.data.ACL;
@ -68,8 +67,8 @@ import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.security.NoSuchAlgorithmException;
import java.security.SecureRandom;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
@ -121,21 +120,18 @@ import java.util.List;
@Private
@Unstable
public class ZKRMStateStore extends RMStateStore {
public static final Log LOG = LogFactory.getLog(ZKRMStateStore.class);
private final SecureRandom random = new SecureRandom();
protected static final String ROOT_ZNODE_NAME = "ZKRMStateRoot";
protected static final Version CURRENT_VERSION_INFO = Version
.newInstance(1, 3);
private static final Log LOG = LogFactory.getLog(ZKRMStateStore.class);
private static final String RM_DELEGATION_TOKENS_ROOT_ZNODE_NAME =
"RMDelegationTokensRoot";
private static final String RM_DT_SEQUENTIAL_NUMBER_ZNODE_NAME =
"RMDTSequentialNumber";
private static final String RM_DT_MASTER_KEYS_ROOT_ZNODE_NAME =
"RMDTMasterKeysRoot";
protected static final String ROOT_ZNODE_NAME = "ZKRMStateRoot";
protected static final Version CURRENT_VERSION_INFO =
Version.newInstance(1, 3);
/** Znode paths */
/* Znode paths */
private String zkRootNodePath;
private String rmAppRoot;
private String rmDTSecretManagerRoot;
@ -144,44 +140,54 @@ public class ZKRMStateStore extends RMStateStore {
private String dtSequenceNumberPath;
private String amrmTokenSecretManagerRoot;
private String reservationRoot;
@VisibleForTesting
protected String znodeWorkingPath;
/** Fencing related variables */
/* Fencing related variables */
private static final String FENCING_LOCK = "RM_ZK_FENCING_LOCK";
private String fencingNodePath;
private Thread verifyActiveStatusThread;
private int zkSessionTimeout;
/** ACL and auth info */
/* ACL and auth info */
private List<ACL> zkAcl;
@VisibleForTesting
List<ACL> zkRootNodeAcl;
private String zkRootNodeUsername;
public static final int CREATE_DELETE_PERMS =
private static final int CREATE_DELETE_PERMS =
ZooDefs.Perms.CREATE | ZooDefs.Perms.DELETE;
private final String zkRootNodeAuthScheme =
new DigestAuthenticationProvider().getScheme();
@VisibleForTesting
protected CuratorFramework curatorFramework;
/**
* Given the {@link Configuration} and {@link ACL}s used (zkAcl) for
* Given the {@link Configuration} and {@link ACL}s used (sourceACLs) for
* ZooKeeper access, construct the {@link ACL}s for the store's root node.
* In the constructed {@link ACL}, all the users allowed by zkAcl are given
* rwa access, while the current RM has exclude create-delete access.
* In the constructed {@link ACL}, all the users allowed by sourceACLs are
* given read-write-admin access, while the current RM has exclusive
* create-delete access.
*
* To be called only when HA is enabled and the configuration doesn't set ACL
* for the root node.
* To be called only when HA is enabled and the configuration doesn't set an
* ACL for the root node.
* @param conf the configuration
* @param sourceACLs the source ACLs
* @return ACLs for the store's root node
* @throws java.security.NoSuchAlgorithmException thrown if the digest
* algorithm used by Zookeeper cannot be found
*/
@VisibleForTesting
@Private
@Unstable
protected List<ACL> constructZkRootNodeACL(
Configuration conf, List<ACL> sourceACLs) throws NoSuchAlgorithmException {
List<ACL> zkRootNodeAcl = new ArrayList<>();
protected List<ACL> constructZkRootNodeACL(Configuration conf,
List<ACL> sourceACLs) throws NoSuchAlgorithmException {
List<ACL> zkRootNodeAclList = new ArrayList<>();
for (ACL acl : sourceACLs) {
zkRootNodeAcl.add(new ACL(
zkRootNodeAclList.add(new ACL(
ZKUtil.removeSpecificPerms(acl.getPerms(), CREATE_DELETE_PERMS),
acl.getId()));
}
@ -190,15 +196,16 @@ public class ZKRMStateStore extends RMStateStore {
YarnConfiguration.RM_ADDRESS,
YarnConfiguration.DEFAULT_RM_ADDRESS, conf);
Id rmId = new Id(zkRootNodeAuthScheme,
DigestAuthenticationProvider.generateDigest(
zkRootNodeUsername + ":" + resourceManager.getZkRootNodePassword()));
zkRootNodeAcl.add(new ACL(CREATE_DELETE_PERMS, rmId));
return zkRootNodeAcl;
DigestAuthenticationProvider.generateDigest(zkRootNodeUsername + ":"
+ resourceManager.getZkRootNodePassword()));
zkRootNodeAclList.add(new ACL(CREATE_DELETE_PERMS, rmId));
return zkRootNodeAclList;
}
@Override
public synchronized void initInternal(Configuration conf) throws Exception {
public synchronized void initInternal(Configuration conf)
throws IOException, NoSuchAlgorithmException {
/* Initialize fencing related paths, acls, and ops */
znodeWorkingPath =
conf.get(YarnConfiguration.ZK_RM_STATE_STORE_PARENT_PATH,
@ -210,16 +217,19 @@ public class ZKRMStateStore extends RMStateStore {
YarnConfiguration.DEFAULT_RM_ZK_TIMEOUT_MS);
zkAcl = RMZKUtils.getZKAcls(conf);
if (HAUtil.isHAEnabled(conf)) {
String zkRootNodeAclConf = HAUtil.getConfValueForRMInstance
(YarnConfiguration.ZK_RM_STATE_STORE_ROOT_NODE_ACL, conf);
if (zkRootNodeAclConf != null) {
zkRootNodeAclConf = ZKUtil.resolveConfIndirection(zkRootNodeAclConf);
try {
zkRootNodeAcl = ZKUtil.parseACLs(zkRootNodeAclConf);
} catch (ZKUtil.BadAclFormatException bafe) {
LOG.error("Invalid format for " +
YarnConfiguration.ZK_RM_STATE_STORE_ROOT_NODE_ACL);
LOG.error("Invalid format for "
+ YarnConfiguration.ZK_RM_STATE_STORE_ROOT_NODE_ACL);
throw bafe;
}
} else {
@ -239,6 +249,7 @@ public class ZKRMStateStore extends RMStateStore {
getNodePath(zkRootNodePath, AMRMTOKEN_SECRET_MANAGER_ROOT);
reservationRoot = getNodePath(zkRootNodePath, RESERVATION_SYSTEM_ROOT);
curatorFramework = resourceManager.getCurator();
if (curatorFramework == null) {
curatorFramework = resourceManager.createAndStartCurator(conf);
}
@ -246,7 +257,6 @@ public class ZKRMStateStore extends RMStateStore {
@Override
public synchronized void startInternal() throws Exception {
// ensure root dirs exist
createRootDirRecursively(znodeWorkingPath);
create(zkRootNodePath);
@ -272,9 +282,11 @@ public class ZKRMStateStore extends RMStateStore {
StringBuilder builder = new StringBuilder();
builder.append(prefix);
for (ACL acl : getAcls) {
builder.append(acl.toString());
}
builder.append(getStat.toString());
LOG.debug(builder.toString());
}
@ -301,6 +313,7 @@ public class ZKRMStateStore extends RMStateStore {
verifyActiveStatusThread.interrupt();
verifyActiveStatusThread.join(1000);
}
if (!HAUtil.isHAEnabled(getConfig())) {
IOUtils.closeStream(curatorFramework);
}
@ -316,6 +329,7 @@ public class ZKRMStateStore extends RMStateStore {
String versionNodePath = getNodePath(zkRootNodePath, VERSION_NODE);
byte[] data =
((VersionPBImpl) CURRENT_VERSION_INFO).getProto().toByteArray();
if (exists(versionNodePath)) {
safeSetData(versionNodePath, data, -1);
} else {
@ -331,6 +345,7 @@ public class ZKRMStateStore extends RMStateStore {
byte[] data = getData(versionNodePath);
return new VersionPBImpl(VersionProto.parseFrom(data));
}
return null;
}
@ -338,6 +353,7 @@ public class ZKRMStateStore extends RMStateStore {
public synchronized long getAndIncrementEpoch() throws Exception {
String epochNodePath = getNodePath(zkRootNodePath, EPOCH_NODE);
long currentEpoch = 0;
if (exists(epochNodePath)) {
// load current epoch
byte[] data = getData(epochNodePath);
@ -353,6 +369,7 @@ public class ZKRMStateStore extends RMStateStore {
.toByteArray();
safeCreate(epochNodePath, storeData, zkAcl, CreateMode.PERSISTENT);
}
return currentEpoch;
}
@ -367,31 +384,37 @@ public class ZKRMStateStore extends RMStateStore {
loadAMRMTokenSecretManagerState(rmState);
// recover reservation state
loadReservationSystemState(rmState);
return rmState;
}
private void loadReservationSystemState(RMState rmState) throws Exception {
List<String> planNodes = getChildren(reservationRoot);
for (String planName : planNodes) {
if (LOG.isDebugEnabled()) {
LOG.debug("Loading plan from znode: " + planName);
}
String planNodePath = getNodePath(reservationRoot, planName);
String planNodePath = getNodePath(reservationRoot, planName);
List<String> reservationNodes = getChildren(planNodePath);
for (String reservationNodeName : reservationNodes) {
String reservationNodePath = getNodePath(planNodePath,
reservationNodeName);
String reservationNodePath =
getNodePath(planNodePath, reservationNodeName);
if (LOG.isDebugEnabled()) {
LOG.debug("Loading reservation from znode: " + reservationNodePath);
}
byte[] reservationData = getData(reservationNodePath);
ReservationAllocationStateProto allocationState =
ReservationAllocationStateProto.parseFrom(reservationData);
if (!rmState.getReservationState().containsKey(planName)) {
rmState.getReservationState().put(planName,
new HashMap<ReservationId, ReservationAllocationStateProto>());
rmState.getReservationState().put(planName, new HashMap<>());
}
ReservationId reservationId =
ReservationId.parseReservationId(reservationNodeName);
rmState.getReservationState().get(planName).put(reservationId,
@ -403,10 +426,10 @@ public class ZKRMStateStore extends RMStateStore {
private void loadAMRMTokenSecretManagerState(RMState rmState)
throws Exception {
byte[] data = getData(amrmTokenSecretManagerRoot);
if (data == null) {
LOG.warn("There is no data saved");
return;
}
} else {
AMRMTokenSecretManagerStatePBImpl stateData =
new AMRMTokenSecretManagerStatePBImpl(
AMRMTokenSecretManagerStateProto.parseFrom(data));
@ -414,6 +437,7 @@ public class ZKRMStateStore extends RMStateStore {
AMRMTokenSecretManagerState.newInstance(
stateData.getCurrentMasterKey(), stateData.getNextMasterKey());
}
}
private synchronized void loadRMDTSecretManagerState(RMState rmState)
throws Exception {
@ -423,8 +447,8 @@ public class ZKRMStateStore extends RMStateStore {
}
private void loadRMDelegationKeyState(RMState rmState) throws Exception {
List<String> childNodes =
getChildren(dtMasterKeysRootPath);
List<String> childNodes = getChildren(dtMasterKeysRootPath);
for (String childNodeName : childNodes) {
String childNodePath = getNodePath(dtMasterKeysRootPath, childNodeName);
byte[] childData = getData(childNodePath);
@ -435,34 +459,30 @@ public class ZKRMStateStore extends RMStateStore {
}
ByteArrayInputStream is = new ByteArrayInputStream(childData);
DataInputStream fsIn = new DataInputStream(is);
try {
try (DataInputStream fsIn = new DataInputStream(is)) {
if (childNodeName.startsWith(DELEGATION_KEY_PREFIX)) {
DelegationKey key = new DelegationKey();
key.readFields(fsIn);
rmState.rmSecretManagerState.masterKeyState.add(key);
if (LOG.isDebugEnabled()) {
LOG.debug("Loaded delegation key: keyId=" + key.getKeyId()
+ ", expirationDate=" + key.getExpiryDate());
}
}
} finally {
is.close();
}
}
}
private void loadRMSequentialNumberState(RMState rmState) throws Exception {
byte[] seqData = getData(dtSequenceNumberPath);
if (seqData != null) {
ByteArrayInputStream seqIs = new ByteArrayInputStream(seqData);
DataInputStream seqIn = new DataInputStream(seqIs);
try {
try (DataInputStream seqIn = new DataInputStream(seqIs)) {
rmState.rmSecretManagerState.dtSequenceNumber = seqIn.readInt();
} finally {
seqIn.close();
}
}
}
@ -470,6 +490,7 @@ public class ZKRMStateStore extends RMStateStore {
private void loadRMDelegationTokenState(RMState rmState) throws Exception {
List<String> childNodes =
getChildren(delegationTokensRootPath);
for (String childNodeName : childNodes) {
String childNodePath =
getNodePath(delegationTokensRootPath, childNodeName);
@ -481,9 +502,8 @@ public class ZKRMStateStore extends RMStateStore {
}
ByteArrayInputStream is = new ByteArrayInputStream(childData);
DataInputStream fsIn = new DataInputStream(is);
try {
try (DataInputStream fsIn = new DataInputStream(is)) {
if (childNodeName.startsWith(DELEGATION_TOKEN_PREFIX)) {
RMDelegationTokenIdentifierData identifierData =
new RMDelegationTokenIdentifierData();
@ -493,36 +513,40 @@ public class ZKRMStateStore extends RMStateStore {
long renewDate = identifierData.getRenewDate();
rmState.rmSecretManagerState.delegationTokenState.put(identifier,
renewDate);
if (LOG.isDebugEnabled()) {
LOG.debug("Loaded RMDelegationTokenIdentifier: " + identifier
+ " renewDate=" + renewDate);
}
}
} finally {
is.close();
}
}
}
private synchronized void loadRMAppState(RMState rmState) throws Exception {
List<String> childNodes = getChildren(rmAppRoot);
for (String childNodeName : childNodes) {
String childNodePath = getNodePath(rmAppRoot, childNodeName);
byte[] childData = getData(childNodePath);
if (childNodeName.startsWith(ApplicationId.appIdStrPrefix)) {
// application
if (LOG.isDebugEnabled()) {
LOG.debug("Loading application from znode: " + childNodeName);
}
ApplicationId appId = ApplicationId.fromString(childNodeName);
ApplicationStateDataPBImpl appState =
new ApplicationStateDataPBImpl(
ApplicationStateDataProto.parseFrom(childData));
if (!appId.equals(
appState.getApplicationSubmissionContext().getApplicationId())) {
throw new YarnRuntimeException("The child node name is different " +
"from the application id");
throw new YarnRuntimeException("The child node name is different "
+ "from the application id");
}
rmState.appState.put(appId, appState);
loadApplicationAttemptState(appState, appId);
} else {
@ -536,6 +560,7 @@ public class ZKRMStateStore extends RMStateStore {
throws Exception {
String appPath = getNodePath(rmAppRoot, appId.toString());
List<String> attempts = getChildren(appPath);
for (String attemptIDStr : attempts) {
if (attemptIDStr.startsWith(ApplicationAttemptId.appAttemptIdStrPrefix)) {
String attemptPath = getNodePath(appPath, attemptIDStr);
@ -548,6 +573,7 @@ public class ZKRMStateStore extends RMStateStore {
appState.attempts.put(attemptState.getAttemptId(), attemptState);
}
}
LOG.debug("Done loading applications from ZK state store");
}
@ -559,21 +585,23 @@ public class ZKRMStateStore extends RMStateStore {
if (LOG.isDebugEnabled()) {
LOG.debug("Storing info for app: " + appId + " at: " + nodeCreatePath);
}
byte[] appStateData = appStateDataPB.getProto().toByteArray();
safeCreate(nodeCreatePath, appStateData, zkAcl,
CreateMode.PERSISTENT);
}
@Override
public synchronized void updateApplicationStateInternal(ApplicationId appId,
ApplicationStateData appStateDataPB) throws Exception {
protected synchronized void updateApplicationStateInternal(
ApplicationId appId, ApplicationStateData appStateDataPB)
throws Exception {
String nodeUpdatePath = getNodePath(rmAppRoot, appId.toString());
if (LOG.isDebugEnabled()) {
LOG.debug("Storing final state info for app: " + appId + " at: "
+ nodeUpdatePath);
}
byte[] appStateData = appStateDataPB.getProto().toByteArray();
if (exists(nodeUpdatePath)) {
@ -587,7 +615,7 @@ public class ZKRMStateStore extends RMStateStore {
}
@Override
public synchronized void storeApplicationAttemptStateInternal(
protected synchronized void storeApplicationAttemptStateInternal(
ApplicationAttemptId appAttemptId,
ApplicationAttemptStateData attemptStateDataPB)
throws Exception {
@ -599,13 +627,13 @@ public class ZKRMStateStore extends RMStateStore {
LOG.debug("Storing info for attempt: " + appAttemptId + " at: "
+ nodeCreatePath);
}
byte[] attemptStateData = attemptStateDataPB.getProto().toByteArray();
safeCreate(nodeCreatePath, attemptStateData, zkAcl,
CreateMode.PERSISTENT);
safeCreate(nodeCreatePath, attemptStateData, zkAcl, CreateMode.PERSISTENT);
}
@Override
public synchronized void updateApplicationAttemptStateInternal(
protected synchronized void updateApplicationAttemptStateInternal(
ApplicationAttemptId appAttemptId,
ApplicationAttemptStateData attemptStateDataPB)
throws Exception {
@ -613,10 +641,12 @@ public class ZKRMStateStore extends RMStateStore {
String appAttemptIdStr = appAttemptId.toString();
String appDirPath = getNodePath(rmAppRoot, appIdStr);
String nodeUpdatePath = getNodePath(appDirPath, appAttemptIdStr);
if (LOG.isDebugEnabled()) {
LOG.debug("Storing final state info for attempt: " + appAttemptIdStr
+ " at: " + nodeUpdatePath);
}
byte[] attemptStateData = attemptStateDataPB.getProto().toByteArray();
if (exists(nodeUpdatePath)) {
@ -630,25 +660,24 @@ public class ZKRMStateStore extends RMStateStore {
}
@Override
public synchronized void removeApplicationAttemptInternal(
ApplicationAttemptId appAttemptId)
throws Exception {
protected synchronized void removeApplicationAttemptInternal(
ApplicationAttemptId appAttemptId) throws Exception {
String appId = appAttemptId.getApplicationId().toString();
String appIdRemovePath = getNodePath(rmAppRoot, appId);
String attemptIdRemovePath = getNodePath(appIdRemovePath,
appAttemptId.toString());
String attemptIdRemovePath =
getNodePath(appIdRemovePath, appAttemptId.toString());
if (LOG.isDebugEnabled()) {
LOG.debug("Removing info for attempt: " + appAttemptId + " at: "
+ attemptIdRemovePath);
}
safeDelete(attemptIdRemovePath);
}
@Override
public synchronized void removeApplicationStateInternal(
ApplicationStateData appState)
throws Exception {
protected synchronized void removeApplicationStateInternal(
ApplicationStateData appState) throws Exception {
String appId = appState.getApplicationSubmissionContext().getApplicationId()
.toString();
String appIdRemovePath = getNodePath(rmAppRoot, appId);
@ -659,9 +688,11 @@ public class ZKRMStateStore extends RMStateStore {
}
for (ApplicationAttemptId attemptId : appState.attempts.keySet()) {
String attemptRemovePath = getNodePath(appIdRemovePath, attemptId.toString());
String attemptRemovePath =
getNodePath(appIdRemovePath, attemptId.toString());
safeDelete(attemptRemovePath);
}
safeDelete(appIdRemovePath);
}
@ -680,10 +711,12 @@ public class ZKRMStateStore extends RMStateStore {
String nodeRemovePath =
getNodePath(delegationTokensRootPath, DELEGATION_TOKEN_PREFIX
+ rmDTIdentifier.getSequenceNumber());
if (LOG.isDebugEnabled()) {
LOG.debug("Removing RMDelegationToken_"
+ rmDTIdentifier.getSequenceNumber());
}
safeDelete(nodeRemovePath);
}
@ -695,6 +728,7 @@ public class ZKRMStateStore extends RMStateStore {
String nodeRemovePath =
getNodePath(delegationTokensRootPath, DELEGATION_TOKEN_PREFIX
+ rmDTIdentifier.getSequenceNumber());
if (exists(nodeRemovePath)) {
// in case znode exists
addStoreOrUpdateOps(trx, rmDTIdentifier, renewDate, true);
@ -703,6 +737,7 @@ public class ZKRMStateStore extends RMStateStore {
addStoreOrUpdateOps(trx, rmDTIdentifier, renewDate, false);
LOG.debug("Attempted to update a non-existing znode " + nodeRemovePath);
}
trx.commit();
}
@ -710,17 +745,16 @@ public class ZKRMStateStore extends RMStateStore {
RMDelegationTokenIdentifier rmDTIdentifier, Long renewDate,
boolean isUpdate) throws Exception {
// store RM delegation token
String nodeCreatePath =
getNodePath(delegationTokensRootPath, DELEGATION_TOKEN_PREFIX
+ rmDTIdentifier.getSequenceNumber());
ByteArrayOutputStream seqOs = new ByteArrayOutputStream();
DataOutputStream seqOut = new DataOutputStream(seqOs);
String nodeCreatePath = getNodePath(delegationTokensRootPath,
DELEGATION_TOKEN_PREFIX + rmDTIdentifier.getSequenceNumber());
RMDelegationTokenIdentifierData identifierData =
new RMDelegationTokenIdentifierData(rmDTIdentifier, renewDate);
try {
ByteArrayOutputStream seqOs = new ByteArrayOutputStream();
try (DataOutputStream seqOut = new DataOutputStream(seqOs)) {
if (LOG.isDebugEnabled()) {
LOG.debug((isUpdate ? "Storing " : "Updating ") + "RMDelegationToken_" +
rmDTIdentifier.getSequenceNumber());
LOG.debug((isUpdate ? "Storing " : "Updating ") + "RMDelegationToken_"
+ rmDTIdentifier.getSequenceNumber());
}
if (isUpdate) {
@ -730,24 +764,23 @@ public class ZKRMStateStore extends RMStateStore {
CreateMode.PERSISTENT);
// Update Sequence number only while storing DT
seqOut.writeInt(rmDTIdentifier.getSequenceNumber());
if (LOG.isDebugEnabled()) {
LOG.debug((isUpdate ? "Storing " : "Updating ") +
dtSequenceNumberPath + ". SequenceNumber: "
LOG.debug((isUpdate ? "Storing " : "Updating ")
+ dtSequenceNumberPath + ". SequenceNumber: "
+ rmDTIdentifier.getSequenceNumber());
}
trx.setData(dtSequenceNumberPath, seqOs.toByteArray(), -1);
}
} finally {
seqOs.close();
}
}
@Override
protected synchronized void storeRMDTMasterKeyState(
DelegationKey delegationKey) throws Exception {
String nodeCreatePath =
getNodePath(dtMasterKeysRootPath, DELEGATION_KEY_PREFIX
+ delegationKey.getKeyId());
String nodeCreatePath = getNodePath(dtMasterKeysRootPath,
DELEGATION_KEY_PREFIX + delegationKey.getKeyId());
if (LOG.isDebugEnabled()) {
LOG.debug("Storing RMDelegationKey_" + delegationKey.getKeyId());
}
@ -765,9 +798,11 @@ public class ZKRMStateStore extends RMStateStore {
String nodeRemovePath =
getNodePath(dtMasterKeysRootPath, DELEGATION_KEY_PREFIX
+ delegationKey.getKeyId());
if (LOG.isDebugEnabled()) {
LOG.debug("Removing RMDelegationKey_" + delegationKey.getKeyId());
}
safeDelete(nodeRemovePath);
}
@ -789,30 +824,31 @@ public class ZKRMStateStore extends RMStateStore {
}
@Override
public synchronized void storeOrUpdateAMRMTokenSecretManagerState(
protected synchronized void storeOrUpdateAMRMTokenSecretManagerState(
AMRMTokenSecretManagerState amrmTokenSecretManagerState, boolean isUpdate)
throws Exception {
AMRMTokenSecretManagerState data =
AMRMTokenSecretManagerState.newInstance(amrmTokenSecretManagerState);
byte[] stateData = data.getProto().toByteArray();
safeSetData(amrmTokenSecretManagerRoot, stateData, -1);
}
@Override
protected synchronized void removeReservationState(String planName,
String reservationIdName)
throws Exception {
String planNodePath =
getNodePath(reservationRoot, planName);
String reservationPath = getNodePath(planNodePath,
reservationIdName);
String reservationIdName) throws Exception {
String planNodePath = getNodePath(reservationRoot, planName);
String reservationPath = getNodePath(planNodePath, reservationIdName);
if (LOG.isDebugEnabled()) {
LOG.debug("Removing reservationallocation " + reservationIdName + " for" +
" plan " + planName);
LOG.debug("Removing reservationallocation " + reservationIdName
+ " for" + " plan " + planName);
}
safeDelete(reservationPath);
List<String> reservationNodes = getChildren(planNodePath);
if (reservationNodes.isEmpty()) {
safeDelete(planNodePath);
}
@ -821,11 +857,10 @@ public class ZKRMStateStore extends RMStateStore {
@Override
protected synchronized void storeReservationState(
ReservationAllocationStateProto reservationAllocation, String planName,
String reservationIdName)
throws Exception {
String reservationIdName) throws Exception {
SafeTransaction trx = new SafeTransaction();
addOrUpdateReservationState(
reservationAllocation, planName, reservationIdName, trx, false);
addOrUpdateReservationState(reservationAllocation, planName,
reservationIdName, trx, false);
trx.commit();
}
@ -843,6 +878,7 @@ public class ZKRMStateStore extends RMStateStore {
if (LOG.isDebugEnabled()) {
LOG.debug("Creating plan node: " + planName + " at: " + planCreatePath);
}
trx.create(planCreatePath, null, zkAcl, CreateMode.PERSISTENT);
}
@ -871,6 +907,7 @@ public class ZKRMStateStore extends RMStateStore {
Preconditions.checkArgument(pathParts.length >= 1 && pathParts[0].isEmpty(),
"Invalid path: %s", path);
StringBuilder sb = new StringBuilder();
for (int i = 1; i < pathParts.length; i++) {
sb.append("/").append(pathParts[i]);
create(sb.toString());
@ -947,8 +984,7 @@ public class ZKRMStateStore extends RMStateStore {
SafeTransaction() throws Exception {
CuratorTransaction transaction = curatorFramework.inTransaction();
transactionFinal =
transaction.create()
transactionFinal = transaction.create()
.withMode(CreateMode.PERSISTENT).withACL(zkAcl)
.forPath(fencingNodePath, new byte[0]).and();
}
@ -985,19 +1021,17 @@ public class ZKRMStateStore extends RMStateStore {
super(VerifyActiveStatusThread.class.getName());
}
@Override
public void run() {
try {
while (true) {
if(isFencedState()) {
break;
}
while (!isFencedState()) {
// Create and delete fencing node
new SafeTransaction().commit();
Thread.sleep(zkSessionTimeout);
}
} catch (InterruptedException ie) {
LOG.info(VerifyActiveStatusThread.class.getName() + " thread " +
"interrupted! Exiting!");
LOG.info(getName() + " thread interrupted! Exiting!");
interrupt();
} catch (Exception e) {
notifyStoreOperationFailed(new StoreFencedException());
}