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From "Jean-Marc Spaggiari (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8220) can we record the count opened HTable for HTablePool
Date Tue, 02 Apr 2013 13:17:15 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8220?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13619783#comment-13619783
] 

Jean-Marc Spaggiari commented on HBASE-8220:
--------------------------------------------

Many tests failed...

I'm not concerned by most of them, but the 2 TestHTablePool tests are more concerning me.

I will try to re-run them separatly.


Tests in error:
  testDeleteAllTimestamps(org.apache.hadoop.hbase.thrift2.TestThriftHBaseServiceHandler)
  testDeleteSingleTimestamp(org.apache.hadoop.hbase.thrift2.TestThriftHBaseServiceHandler)
  testIncrement(org.apache.hadoop.hbase.thrift2.TestThriftHBaseServiceHandler)
  testCheckAndPut(org.apache.hadoop.hbase.thrift2.TestThriftHBaseServiceHandler)
  testCheckAndDelete(org.apache.hadoop.hbase.thrift2.TestThriftHBaseServiceHandler)
  testScan(org.apache.hadoop.hbase.thrift2.TestThriftHBaseServiceHandler)
  testMetrics(org.apache.hadoop.hbase.thrift2.TestThriftHBaseServiceHandler)
  testExists(org.apache.hadoop.hbase.thrift2.TestThriftHBaseServiceHandler)
  testPutGet(org.apache.hadoop.hbase.thrift2.TestThriftHBaseServiceHandler)
  testPutGetMultiple(org.apache.hadoop.hbase.thrift2.TestThriftHBaseServiceHandler)
  testDeleteMultiple(org.apache.hadoop.hbase.thrift2.TestThriftHBaseServiceHandler)
  testDelete(org.apache.hadoop.hbase.thrift2.TestThriftHBaseServiceHandler)
  testGetTableDescriptor(org.apache.hadoop.hbase.rest.client.TestRemoteTable): schema request
returned 500
  testGet(org.apache.hadoop.hbase.rest.client.TestRemoteTable): get request returned 400
  testMultiGet(org.apache.hadoop.hbase.rest.client.TestRemoteTable): get request returned
500
  testPut(org.apache.hadoop.hbase.rest.client.TestRemoteTable): put request failed with 500
  testTableWithMaxSize(org.apache.hadoop.hbase.client.TestHTablePool$TestHTableThreadLocalPool)
  testCloseTablePool(org.apache.hadoop.hbase.client.TestHTablePool$TestHTableThreadLocalPool)
  testTableWithStringName(org.apache.hadoop.hbase.client.TestHTablePool$TestHTableThreadLocalPool)
  testTableWithByteArrayName(org.apache.hadoop.hbase.client.TestHTablePool$TestHTableThreadLocalPool)
  testTablesWithDifferentNames(org.apache.hadoop.hbase.client.TestHTablePool$TestHTableThreadLocalPool)
  testDeprecatedUsagePattern(org.apache.hadoop.hbase.client.TestHTablePool$TestHTableThreadLocalPool)
  testTableWithMaxSize(org.apache.hadoop.hbase.client.TestHTablePool$TestHTableReusablePool)
  testCloseTablePool(org.apache.hadoop.hbase.client.TestHTablePool$TestHTableReusablePool)
  testTableWithStringName(org.apache.hadoop.hbase.client.TestHTablePool$TestHTableReusablePool)
  testTableWithByteArrayName(org.apache.hadoop.hbase.client.TestHTablePool$TestHTableReusablePool)
  testTablesWithDifferentNames(org.apache.hadoop.hbase.client.TestHTablePool$TestHTableReusablePool)
  testDeprecatedUsagePattern(org.apache.hadoop.hbase.client.TestHTablePool$TestHTableReusablePool)
  testDML(org.apache.hadoop.hbase.avro.TestAvroServer)
  testFamilyAdminAndMetadata(org.apache.hadoop.hbase.avro.TestAvroServer)

Tests run: 1332, Failures: 34, Errors: 30, Skipped: 13

                
> can we record the count opened HTable for HTablePool
> ----------------------------------------------------
>
>                 Key: HBASE-8220
>                 URL: https://issues.apache.org/jira/browse/HBASE-8220
>             Project: HBase
>          Issue Type: Improvement
>          Components: Client
>    Affects Versions: 0.94.3
>            Reporter: cuijianwei
>         Attachments: HBASE-8220-0.94.3.txt, HBASE-8220-0.94.3.txt, HBASE-8220-0.94.3.txt-v2,
HBASE-8220-0.94.3-v2.txt, HBASE-8220-0.94.3-v3.txt
>
>
> In HTablePool, we have a method getCurrentPoolSize(...) to get how many opened HTable
has been pooled. However, we don't know ConcurrentOpenedHTable which means the count of HTable
get from HTablePool.getTable(...) and don't return to HTablePool by PooledTable.close(). The
ConcurrentOpenedHTable may be meaningful because it indicates how many HTables should be opened
for the application which may help us set the appropriate MaxSize of HTablePool. Therefore,
we can and a ConcurrentOpenedHTable as a counter in HTablePool.

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