15.14. IPC Configuration Conflicts with Hadoop

15.14. IPC Configuration Conflicts with Hadoop
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If the Hadoop configuration is loaded after the HBase configuration, and you have configured custom IPC settings in both HBase and Hadoop, the Hadoop values may overwrite the HBase values. There is normally no need to change these settings for HBase, so this problem is an edge case. However, HBASE-11492 renames these settings for HBase to remove the chance of a conflict. Each of the setting names have been prefixed with hbase., as shown in the following table. No action is required related to these changes unless you are already experiencing a conflict.

These changes were backported to HBase 0.98.x and apply to all newer versions.

Pre-0.98.x	0.98-x And Newer
`ipc.server.listen.queue.size`	`hbase.ipc.server.listen.queue.size`
`ipc.server.max.callqueue.size`	`hbase.ipc.server.max.callqueue.size`
`ipc.server.callqueue.handler.factor`	`hbase.ipc.server.callqueue.handler.factor`
`ipc.server.callqueue.read.share`	`hbase.ipc.server.callqueue.read.share`
`ipc.server.callqueue.type`	`hbase.ipc.server.callqueue.type`
`ipc.server.queue.max.call.delay`	`hbase.ipc.server.queue.max.call.delay`
`ipc.server.max.callqueue.length`	`hbase.ipc.server.max.callqueue.length`
`ipc.server.read.threadpool.size`	`hbase.ipc.server.read.threadpool.size`
`ipc.server.tcpkeepalive`	`hbase.ipc.server.tcpkeepalive`
`ipc.server.tcpnodelay`	`hbase.ipc.server.tcpnodelay`
`ipc.client.call.purge.timeout`	`hbase.ipc.client.call.purge.timeout`
`ipc.client.connection.maxidletime`	`hbase.ipc.client.connection.maxidletime`
`ipc.client.idlethreshold`	`hbase.ipc.client.idlethreshold`
`ipc.client.kill.max`	`hbase.ipc.client.kill.max`
`ipc.server.scan.vtime.weight`	`hbase.ipc.server.scan.vtime.weight`

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