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Set the number of map shards to 20

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This change is motivated by the sandbox run where we saw the backend instances overwhelmed by the 100 default shards to the point where they couldn't even answer a simple status request.

Production has 50 backend instances, so 20 will leave a lot of spare for other tasks.

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=162357857
This commit is contained in:
guyben 2017-07-18 08:55:19 -07:00 • committed by Ben McIlwain
parent 7a7bb51093
commit 882db28ee0
1 changed files with 2 additions and 0 deletions
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2
java/google/registry/backup/DeleteOldCommitLogsAction.java
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@ -67,6 +67,7 @@ import org.joda.time.Duration;
)
public final class DeleteOldCommitLogsAction implements Runnable {
private static final int NUM_MAP_SHARDS = 20;
private static final int NUM_REDUCE_SHARDS = 10;
private static final FormattingLogger logger = getLoggerForCallerClass();
@ -86,6 +87,7 @@ public final class DeleteOldCommitLogsAction implements Runnable {
response.sendJavaScriptRedirect(createJobPath(mrRunner
.setJobName("Delete old commit logs")
.setModuleName("backend")
.setDefaultMapShards(NUM_MAP_SHARDS)
.setDefaultReduceShards(NUM_REDUCE_SHARDS)
.runMapreduce(
new DeleteOldCommitLogsMapper(),