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https://issues.apache.org/jira/browse/HBASE-8450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13661693#comment-13661693
]
stack commented on HBASE-8450:
------------------------------
[~dsw] Yeah, there are a class of changes that we need to experiment w/ under
load; e.g. the WAL size.
On the making it more lively, I'll make it 100ms rather 1000ms for pause but
will up the retries to 20. Because of our expotential backoff, we end up
waiting about the same time. Here is what happens currently:
{code}
4 testTimeout(org.apache.hadoop.hbase.client.TestClientNoCluster) Time
elapsed: 40.055 sec <<< ERROR!
5 org.apache.hadoop.hbase.client.RetriesExhaustedException: Failed after
attempts=10, exceptions:
6 Sun May 19 16:01:29 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@20d12eea,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
7 Sun May 19 16:01:30 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@20d12eea,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
8 Sun May 19 16:01:31 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@20d12eea,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
9 Sun May 19 16:01:32 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@20d12eea,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
10 Sun May 19 16:01:34 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@20d12eea,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
11 Sun May 19 16:01:36 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@20d12eea,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
12 Sun May 19 16:01:40 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@20d12eea,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
13 Sun May 19 16:01:44 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@20d12eea,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
14 Sun May 19 16:01:52 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@20d12eea,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
15 Sun May 19 16:02:08 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@20d12eea,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
16
17 ,...at
org.apache.hadoop.hbase.client.ServerCallable.withRetries(ServerCallable.java:197)
{code}
Here is w/ 100ms pause and 20 retries:
{code}
2 Tests run: 4, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 37.124 sec
<<< FAILURE!
3 testTimeout(org.apache.hadoop.hbase.client.TestClientNoCluster) Time
elapsed: 36.884 sec <<< ERROR!
4 org.apache.hadoop.hbase.client.RetriesExhaustedException: Failed after
attempts=20, exceptions:
5 Sun May 19 16:25:02 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@5edf2d38,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
6 Sun May 19 16:25:03 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@5edf2d38,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
7 Sun May 19 16:25:03 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@5edf2d38,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
8 Sun May 19 16:25:03 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@5edf2d38,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
9 Sun May 19 16:25:03 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@5edf2d38,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
10 Sun May 19 16:25:03 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@5edf2d38,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
11 Sun May 19 16:25:04 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@5edf2d38,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
12 Sun May 19 16:25:04 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@5edf2d38,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
13 Sun May 19 16:25:05 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@5edf2d38,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
14 Sun May 19 16:25:06 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@5edf2d38,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
15 Sun May 19 16:25:10 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@5edf2d38,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
16 Sun May 19 16:25:13 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@5edf2d38,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
17 Sun May 19 16:25:16 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@5edf2d38,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
18 Sun May 19 16:25:19 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@5edf2d38,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
19 Sun May 19 16:25:22 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@5edf2d38,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
20 Sun May 19 16:25:26 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@5edf2d38,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
21 Sun May 19 16:25:29 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@5edf2d38,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
22 Sun May 19 16:25:32 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@5edf2d38,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
23 Sun May 19 16:25:35 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@5edf2d38,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
24 Sun May 19 16:25:39 PDT 2013,
org.apache.hadoop.hbase.client.ScannerCallable@5edf2d38,
org.apache.hadoop.hbase.exceptions.RegionServerStoppedException: From Mockito
{code}
> Update hbase-default.xml and general recommendations to better suit current
> hw, h2, experience, etc.
> ----------------------------------------------------------------------------------------------------
>
> Key: HBASE-8450
> URL: https://issues.apache.org/jira/browse/HBASE-8450
> Project: HBase
> Issue Type: Task
> Components: Usability
> Reporter: stack
> Priority: Critical
> Fix For: 0.95.1
>
> Attachments: 8450.txt
>
>
> This is a critical task we need to do before we release; review our defaults.
> On cursory review, there are configs in hbase-default.xml that no longer have
> matching code; there are some that should be changed because we know better
> now and others that should be amended because hardware and deploys are bigger
> than they used to be.
> We could also move stuff around so that the must-edit stuff is near the top
> (zk quorum config. is mid-way down the page) and beef up the descriptions --
> especially since these descriptions shine through in the refguide.
> Lastly, I notice that our tgz does not "include" an hbase-default.xml other
> than the one bundled up in the jar. Maybe we should make it more accessible.
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