Anoop Sam John created HBASE-7919:
-------------------------------------
Summary: Wrong key is used in ServerManager#getServerConnection()
to retrieve from Map serverConnections
Key: HBASE-7919
URL: https://issues.apache.org/jira/browse/HBASE-7919
Project: HBase
Issue Type: Bug
Components: master
Affects Versions: 0.94.0
Reporter: Anoop Sam John
Assignee: Anoop Sam John
Fix For: 0.94.6
ServerManager#getServerConnection() try to retrieve the cached connection from
Map serverConnections. ServerName objects are the key with which items are
saved in this map. But we use String type to get. This always returns null and
in turn the Master creates a new connection with RS again and again.
{code}
private final Map<ServerName, HRegionInterface> serverConnections =
new HashMap<ServerName, HRegionInterface>();
...........
private HRegionInterface getServerConnection(final ServerName sn)
throws IOException {
HRegionInterface hri = this.serverConnections.get(sn.toString());
if (hri == null) {
LOG.debug("New connection to " + sn.toString());
hri = this.connection.getHRegionConnection(sn.getHostname(),
sn.getPort());
this.serverConnections.put(sn, hri);
}
return hri;
}
{code}
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