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HBASE-26944 Possible resource leak while creating new region scanner (#4339)

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* HBASE-26944 Possible resource leak while creating new region scanner

Signed-off-by: Duo Zhang <zhangduo@apache.org>
(cherry picked from commit 62e3efccef766e580642a8b7cb5654c96e47687d)
This commit is contained in:
Pankaj 2022-04-15 11:34:25 +05:30
parent 1fc186643f
commit eea9e78d17
1 changed files with 10 additions and 2 deletions
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12
hbase-server/src/main/java/org/apache/hadoop/hbase/regionserver/RSRpcServices.java
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@ -3202,8 +3202,16 @@ public class RSRpcServices implements HBaseRPCErrorHandler,
RegionScannerImpl coreScanner = region.getScanner(scan);
Shipper shipper = coreScanner;
RegionScanner scanner = coreScanner;
if (region.getCoprocessorHost() != null) {
scanner = region.getCoprocessorHost().postScannerOpen(scan, scanner);
try {
if (region.getCoprocessorHost() != null) {
scanner = region.getCoprocessorHost().postScannerOpen(scan, scanner);
}
} catch (Exception e) {
// Although region coprocessor is for advanced users and they should take care of the
// implementation to not damage the HBase system, closing the scanner on exception here does
// not have any bad side effect, so let's do it
scanner.close();
throw e;
}
long scannerId = scannerIdGenerator.generateNewScannerId();
builder.setScannerId(scannerId);