Lars Hofhansl created HBASE-19534: ------------------------------------- Summary: Document risks of RegionObserver.preStoreScannerOpen Key: HBASE-19534 URL: https://issues.apache.org/jira/browse/HBASE-19534 Project: HBase Issue Type: Bug Reporter: Lars Hofhansl Assignee: Lars Hofhansl
We just had an outage because we used preStoreScannerOpen, which, in our case, created a new StoreScanner. In HBase versions before 1.3 this caused a definite memory leak, a reference to the old StoreScanner (if not null) would be held by the store until the region is closed. The 1.3 and later there's no such leak, but still the old scanner is not properly closed. This should be added to the Javadoc and the ZooKeeperScanPolicyObserver example should be fixed. -- This message was sent by Atlassian JIRA (v6.4.14#64029)