If getTaskList() returns null splitlogWorker is down. It wont serve any
requests.
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Key: HBASE-5635
URL: https://issues.apache.org/jira/browse/HBASE-5635
Project: HBase
Issue Type: Bug
Components: wal
Affects Versions: 0.92.1
Reporter: Kristam Subba Swathi
During the hlog split operation if all the zookeepers are down ,then the paths
will be returned as null and the splitworker thread wil be exited
Now this regionserver wil not be able to acquire any other tasks since the
splitworker thread is exited
Please find the attached code for more details
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private List<String> getTaskList() {
for (int i = 0; i < zkretries; i++) {
try {
return (ZKUtil.listChildrenAndWatchForNewChildren(this.watcher,
this.watcher.splitLogZNode));
} catch (KeeperException e) {
LOG.warn("Could not get children of znode " +
this.watcher.splitLogZNode, e);
try {
Thread.sleep(1000);
} catch (InterruptedException e1) {
LOG.warn("Interrupted while trying to get task list ...", e1);
Thread.currentThread().interrupt();
return null;
}
}
}
in the org.apache.hadoop.hbase.regionserver.SplitLogWorker
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