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HBASE-29805: NullPointerException in AbstractRpcClient.createAddr after a RegionServer restart #7668

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HBASE-29805: NullPointerException in AbstractRpcClient.createAddr after a RegionServer restart #7668

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12 changes: 9 additions & 3 deletions ...er/src/main/java/org/apache/hadoop/hbase/master/assignment/SplitTableRegionProcedure.java
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Original file line number Diff line number Diff line change
Expand Up @@ -206,18 +206,24 @@ private void checkSplittable(final MasterProcedureEnv env, final RegionInfo regi
IOException splittableCheckIOE = null;
boolean splittable = false;
if (node != null) {
// Check if region is assigned to a server before proceeding
ServerName regionLocation = node.getRegionLocation();
if (regionLocation == null) {
throw new DoNotRetryIOException("Region " + regionToSplit.getShortNameToLog()
+ " is not assigned to any server. Cannot check splittability.");
}
try {
GetRegionInfoResponse response;
if (!hasBestSplitRow()) {
LOG.info(
"{} splitKey isn't explicitly specified, will try to find a best split key from RS {}",
node.getRegionInfo().getRegionNameAsString(), node.getRegionLocation());
response = AssignmentManagerUtil.getRegionInfoResponse(env, node.getRegionLocation(),
node.getRegionInfo().getRegionNameAsString(), regionLocation);
response = AssignmentManagerUtil.getRegionInfoResponse(env, regionLocation,
node.getRegionInfo(), true);
bestSplitRow =
response.hasBestSplitRow() ? response.getBestSplitRow().toByteArray() : null;
} else {
response = AssignmentManagerUtil.getRegionInfoResponse(env, node.getRegionLocation(),
response = AssignmentManagerUtil.getRegionInfoResponse(env, regionLocation,
node.getRegionInfo(), false);
}
splittable = response.hasSplittable() && response.getSplittable();
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