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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-18610) Provide capability to activate chaos monkey
Date Fri, 25 Aug 2017 19:05:00 GMT

    [ https://issues.apache.org/jira/browse/HBASE-18610?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16142043#comment-16142043
] 

Ted Yu commented on HBASE-18610:
--------------------------------

This was the command I used on docker where 227 is the directory holding hbase-site.xml pointing
to remote cluster:
{code}
./buck-out/gen/core/load-client --num_rows=200 --num_cols=3 --table=t --families=d --appends=false
-monkey=serverKilling -conf 227
{code}
In the output, I saw:
{code}
2017-08-25 19:00:34,505 INFO  [main-SendThread(172.26.109.228:2181)] zookeeper.ClientCnxn
(ClientCnxn.java:onConnected(1299)) - Session establishment complete on server 172.26.109.228/172.26.109.228:2181,
sessionid = 0x25d2dc12805569e, negotiated timeout = 40000
2017-08-25 19:00:34,567 INFO  [main] policies.Policy (PeriodicPolicy.java:init(57)) - Using
ChaosMonkey Policy: class org.apache.hadoop.hbase.chaos.policies.DoActionsOncePolicy, period:
60000
2017-08-25 19:00:34,568 INFO  [main] policies.Policy (PeriodicPolicy.java:init(57)) - Using
ChaosMonkey Policy: class org.apache.hadoop.hbase.chaos.policies.PeriodicRandomActionPolicy,
period: 60000
2017-08-25 19:00:34,569 INFO  [main] policies.Policy (PeriodicPolicy.java:init(57)) - Using
ChaosMonkey Policy: class org.apache.hadoop.hbase.chaos.policies.PeriodicRandomActionPolicy,
period: 60000
{code}
You need to rebuild hbase-it module so that recent change to ChaosMonkeyRunner can be picked
up.

> Provide capability to activate chaos monkey
> -------------------------------------------
>
>                 Key: HBASE-18610
>                 URL: https://issues.apache.org/jira/browse/HBASE-18610
>             Project: HBase
>          Issue Type: Sub-task
>            Reporter: Ted Yu
>         Attachments: 18610.v1.txt, 18610.v4.txt, 18610.v5.txt
>
>
> Currently load-client runs against a cluster where region servers are stable.
> We need to introduce chaos monkey so that wider coverage for read path is exercised.



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