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HDDS-2153. Add a config to tune max pending requests in Ratis leader 

Closes #1474
This commit is contained in:
Shashikant Banerjee 2019-09-30 15:42:04 +02:00 committed by Márton Elek
parent d6b0a8da77
commit a530ac3f50
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4 changed files with 24 additions and 0 deletions
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5
hadoop-hdds/common/src/main/java/org/apache/hadoop/hdds/scm/ScmConfigKeys.java
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@ -105,6 +105,11 @@ public final class ScmConfigKeys {
// TODO: Set to 1024 once RATIS issue around purge is fixed.
public static final int DFS_CONTAINER_RATIS_LOG_PURGE_GAP_DEFAULT =
1000000;
public static final String DFS_CONTAINER_RATIS_LEADER_NUM_PENDING_REQUESTS =
"dfs.container.ratis.leader.num.pending.requests";
public static final int
DFS_CONTAINER_RATIS_LEADER_NUM_PENDING_REQUESTS_DEFAULT = 4096;
// expiry interval stateMachineData cache entry inside containerStateMachine
public static final String
DFS_CONTAINER_RATIS_STATEMACHINEDATA_CACHE_EXPIRY_INTERVAL =

5
hadoop-hdds/common/src/main/java/org/apache/hadoop/ozone/OzoneConfigKeys.java
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@ -329,6 +329,11 @@ public final class OzoneConfigKeys {
ScmConfigKeys.DFS_CONTAINER_RATIS_LOG_PURGE_GAP;
public static final int DFS_CONTAINER_RATIS_LOG_PURGE_GAP_DEFAULT =
ScmConfigKeys.DFS_CONTAINER_RATIS_LOG_PURGE_GAP_DEFAULT;
public static final String DFS_CONTAINER_RATIS_LEADER_NUM_PENDING_REQUESTS =
ScmConfigKeys.DFS_CONTAINER_RATIS_LEADER_NUM_PENDING_REQUESTS;
public static final int
DFS_CONTAINER_RATIS_LEADER_NUM_PENDING_REQUESTS_DEFAULT =
ScmConfigKeys.DFS_CONTAINER_RATIS_LEADER_NUM_PENDING_REQUESTS_DEFAULT;
public static final String DFS_RATIS_SERVER_REQUEST_TIMEOUT_DURATION_KEY =
ScmConfigKeys.DFS_RATIS_SERVER_REQUEST_TIMEOUT_DURATION_KEY;
public static final TimeDuration

8
hadoop-hdds/common/src/main/resources/ozone-default.xml
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@ -203,6 +203,14 @@
will use for writing chunks (60 by default).
</description>
</property>
<property>
<name>dfs.container.ratis.leader.num.pending.requests</name>
<value>4096</value>
<tag>OZONE, RATIS, PERFORMANCE</tag>
<description>Maximum number of pending requests after which the leader
starts rejecting requests from client.
</description>
</property>
<property>
<name>dfs.container.ratis.replication.level</name>
<value>MAJORITY</value>

6
hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/transport/server/ratis/XceiverServerRatis.java
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@ -33,6 +33,7 @@ import org.apache.hadoop.hdds.security.x509.SecurityConfig;
import org.apache.hadoop.hdds.security.x509.certificate.client.CertificateClient;
import org.apache.hadoop.hdds.tracing.TracingUtil;
import org.apache.hadoop.ozone.OzoneConfigKeys;
import org.apache.hadoop.ozone.OzoneConsts;
import org.apache.hadoop.ozone.container.common.interfaces.ContainerDispatcher;
import org.apache.hadoop.ozone.container.common.statemachine.StateContext;
@ -225,6 +226,11 @@ public final class XceiverServerRatis extends XceiverServer {
setAutoTriggerEnabled(properties, true);
RaftServerConfigKeys.Snapshot.
setAutoTriggerThreshold(properties, snapshotThreshold);
int maxPendingRequets = conf.getInt(
OzoneConfigKeys.DFS_CONTAINER_RATIS_LEADER_NUM_PENDING_REQUESTS,
OzoneConfigKeys.DFS_CONTAINER_RATIS_LEADER_NUM_PENDING_REQUESTS_DEFAULT
);
RaftServerConfigKeys.Write.setElementLimit(properties, maxPendingRequets);
int logQueueNumElements =
conf.getInt(OzoneConfigKeys.DFS_CONTAINER_RATIS_LOG_QUEUE_NUM_ELEMENTS,
OzoneConfigKeys.DFS_CONTAINER_RATIS_LOG_QUEUE_NUM_ELEMENTS_DEFAULT);