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HBASE-26726 Allow disable of region warmup before graceful move #4087

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Merged
merged 1 commit into from
Feb 1, 2022
Merged

HBASE-26726 Allow disable of region warmup before graceful move #4087

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16 changes: 12 additions & 4 deletions hbase-server/src/main/java/org/apache/hadoop/hbase/master/HMaster.java
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Original file line number Diff line number Diff line change
Expand Up @@ -396,6 +396,9 @@ public void run() {
// Waiting time of non-meta region's moving for meta regions assignment.
private final long timeoutWaitMetaRegionAssignment;

public static final String WARMUP_BEFORE_MOVE = "hbase.master.warmup.before.move";
private static final boolean DEFAULT_WARMUP_BEFORE_MOVE = true;

public static class RedirectServlet extends HttpServlet {
private static final long serialVersionUID = 2894774810058302473L;
private final int regionServerInfoPort;
Expand Down Expand Up @@ -1846,10 +1849,15 @@ public void move(final byte[] encodedRegionName,
return;
}
}
// warmup the region on the destination before initiating the move. this call
// is synchronous and takes some time. doing it before the source region gets
// closed
serverManager.sendRegionWarmup(rp.getDestination(), hri);

if (conf.getBoolean(WARMUP_BEFORE_MOVE, DEFAULT_WARMUP_BEFORE_MOVE)) {
// warmup the region on the destination before initiating the move. this call
// is synchronous and takes some time. doing it before the source region gets
// closed
LOG.info(getClientIdAuditPrefix() + " move " + rp + ", warming up region on " +
rp.getDestination());
serverManager.sendRegionWarmup(rp.getDestination(), hri);
}

// Here wait until all the meta regions are not in transition.
if (!hri.isMetaRegion() && assignmentManager.getRegionStates().isMetaRegionInTransition()) {
Expand Down