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https://issues.apache.org/jira/browse/CASSANDRA-2069?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12990865#comment-12990865
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Brandon Williams commented on CASSANDRA-2069:
---------------------------------------------
Nothing interesting, afaict. Just a lot of this:
{noformat}
DEBUG 23:19:42,094 get_slice
DEBUG 23:19:42,094 get_slice
DEBUG 23:19:42,240 ReadCallback blocking for 1 responses
DEBUG 23:19:42,240 ReadCallback blocking for 1 responses
DEBUG 23:19:42,093 ReadCallback blocking for 1 responses
DEBUG 23:19:42,092 reading data for SliceFromReadCommand(table='Keyspace1',
key='30343939323034', column_parent='QueryPath(columnFamilyName='Standard1',
superColumnName='null', columnName='null')', start='', finish='',
reversed=false, count=5) locally
DEBUG 23:19:42,091 Read: 21 ms.
DEBUG 23:19:42,091 LocalReadRunnable reading
SliceFromReadCommand(table='Keyspace1', key='30353032333935',
column_parent='QueryPath(columnFamilyName='Standard1', superColumnName='null',
columnName='null')', start='', finish='', reversed=false, count=5)
DEBUG 23:19:42,091 Read: 17 ms.
DEBUG 23:19:42,241 Read: 159 ms.
DEBUG 23:19:42,091 Read: 12 ms.
DEBUG 23:19:42,091 reading data for SliceFromReadCommand(table='Keyspace1',
key='30333636313035', column_parent='QueryPath(columnFamilyName='Standard1',
superColumnName='null', columnName='null')', start='', finish='',
reversed=false, count=5) locally
DEBUG 23:19:42,091 LocalReadRunnable reading
SliceFromReadCommand(table='Keyspace1', key='30343831383238',
column_parent='QueryPath(columnFamilyName='Standard1', superColumnName='null',
columnName='null')', start='', finish='', reversed=false, count=5)
DEBUG 23:19:42,091 get_slice
DEBUG 23:19:42,242 Read: 161 ms.
DEBUG 23:19:42,242 ReadCallback blocking for 1 responses
DEBUG 23:19:42,091 get_slice
DEBUG 23:19:42,090 Read: 17 ms.
DEBUG 23:19:42,243 ReadCallback blocking for 1 responses
DEBUG 23:19:42,090 Read: 19 ms.
DEBUG 23:19:42,090 reading data for SliceFromReadCommand(table='Keyspace1',
key='30353131363631', column_parent='QueryPath(columnFamilyName='Standard1',
superColumnName='null', columnName='null')', start='', finish='',
reversed=false, count=5) locally
DEBUG 23:19:42,089 ReadCallback blocking for 1 responses
DEBUG 23:19:42,243 reading data for SliceFromReadCommand(table='Keyspace1',
key='30353532343833', column_parent='QueryPath(columnFamilyName='Standard1',
superColumnName='null', columnName='null')', start='', finish='',
reversed=false, count=5) locally
DEBUG 23:19:42,244 LocalReadRunnable reading
SliceFromReadCommand(table='Keyspace1', key='30353532343833',
column_parent='QueryPath(columnFamilyName='Standard1', superColumnName='null',
columnName='null')', start='', finish='', reversed=false, count=5)
DEBUG 23:19:42,244 Read: 1 ms.
DEBUG 23:19:42,243 reading data for SliceFromReadCommand(table='Keyspace1',
key='30363137363033', column_parent='QueryPath(columnFamilyName='Standard1',
superColumnName='null', columnName='null')', start='', finish='',
reversed=false, count=5) locally
DEBUG 23:19:42,242 reading data for SliceFromReadCommand(table='Keyspace1',
key='30363234303332', column_parent='QueryPath(columnFamilyName='Standard1',
superColumnName='null', columnName='null')', start='', finish='',
reversed=false, count=5) locally
DEBUG 23:19:42,242 LocalReadRunnable reading
SliceFromReadCommand(table='Keyspace1', key='30333636313035',
column_parent='QueryPath(columnFamilyName='Standard1', superColumnName='null',
columnName='null')', start='', finish='', reversed=false, count=5)
DEBUG 23:19:42,241 LocalReadRunnable reading
SliceFromReadCommand(table='Keyspace1', key='30343939323034',
column_parent='QueryPath(columnFamilyName='Standard1', superColumnName='null',
columnName='null')', start='', finish='', reversed=false, count=5)
DEBUG 23:19:42,245 Read: 3 ms.
{noformat}
> Read repair causes tremendous GC pressure
> -----------------------------------------
>
> Key: CASSANDRA-2069
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2069
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: 0.7.1
> Reporter: Brandon Williams
> Assignee: Jonathan Ellis
> Fix For: 0.7.2
>
> Attachments: 2069-v2.txt, 2069-v3.txt, 2069-v4.txt, 2069-v5.txt,
> 2069.txt
>
>
> To reproduce: start a three node cluster, insert 1M rows with stress.java and
> rf=2. Take one down, delete its data, then bring it back up and issue 1M
> reads against it. After the run is done you will see at least 1 STW long
> enough to mark the node as dead, often 4 or 5.
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