Thanks for your reply. I got it. But master and Region server is same machine and the cluster is free.
In my scenario： 1/ before 2011-05-04 03:42. bulk data was putting and some IPC was blocked. 2011-05-04 03:42:39,155 INFO org.apache.hadoop.hbase.regionserver.HRegion: Blocking updates for 'IPC Server handler 1 on 60020' on region test1,2010010100#8613880051110#0000,1304451639350.dfbdc1cf590bfffb50ace4c7d116c524.: memstore size 128.1m is >= than blocking 128.0m size 2011-05-04 03:42:39,194 INFO org.apache.hadoop.hbase.regionserver.HRegion: Blocking updates for 'IPC Server handler 6 on 60020' on region test1,2010010100#8613880051110#0000,1304451639350.dfbdc1cf590bfffb50ace4c7d116c524.: memstore size 128.4m is >= than blocking 128.0m size 2/ 2011-05-04 05:13 hbase client had exited and cluster was free. 2011-05-04 04:47:03,372 DEBUG org.apache.hadoop.hbase.io.hfile.LruBlockCache: LRU Stats: total=2.56 MB, free=196.61 MB, max=199.18 MB, blocks=115, accesses=526799, hits=37164, hitRatio=7.05%%, cachingAccesses=37279, cachingHits=37164, cachingHitsRatio=99.69%%, evictions=0, evicted=0, evictedPerRun=NaN 2011-05-04 04:52:03,372 DEBUG org.apache.hadoop.hbase.io.hfile.LruBlockCache: LRU Stats: total=2.56 MB, free=196.61 MB, max=199.18 MB, blocks=115, accesses=526913, hits=37278, hitRatio=7.07%%, cachingAccesses=37393, cachingHits=37278, cachingHitsRatio=99.69%%, evictions=0, evicted=0, evictedPerRun=NaN 2011-05-04 04:57:03,372 DEBUG org.apache.hadoop.hbase.io.hfile.LruBlockCache: LRU Stats: total=2.56 MB, free=196.61 MB, max=199.18 MB, blocks=115, accesses=526913, hits=37278, hitRatio=7.07%%, cachingAccesses=37393, cachingHits=37278, cachingHitsRatio=99.69%%, evictions=0, evicted=0, evictedPerRun=NaN 2011-05-04 05:02:03,372 DEBUG org.apache.hadoop.hbase.io.hfile.LruBlockCache: LRU Stats: total=2.56 MB, free=196.61 MB, max=199.18 MB, blocks=115, accesses=526913, hits=37278, hitRatio=7.07%%, cachingAccesses=37393, cachingHits=37278, cachingHitsRatio=99.69%%, evictions=0, evicted=0, evictedPerRun=NaN 2011-05-04 05:07:03,372 DEBUG org.apache.hadoop.hbase.io.hfile.LruBlockCache: LRU Stats: total=2.56 MB, free=196.61 MB, max=199.18 MB, blocks=115, accesses=526913, hits=37278, hitRatio=7.07%%, cachingAccesses=37393, cachingHits=37278, cachingHitsRatio=99.69%%, evictions=0, evicted=0, evictedPerRun=NaN 2011-05-04 05:12:03,372 DEBUG org.apache.hadoop.hbase.io.hfile.LruBlockCache: LRU Stats: total=2.56 MB, free=196.61 MB, max=199.18 MB, blocks=115, accesses=526913, hits=37278, hitRatio=7.07%%, cachingAccesses=37393, cachingHits=37278, cachingHitsRatio=99.69%%, evictions=0, evicted=0, evictedPerRun=NaN 2011-05-04 05:17:03,372 DEBUG org.apache.hadoop.hbase.io.hfile.LruBlockCache: LRU Stats: total=2.56 MB, free=196.61 MB, max=199.18 MB, blocks=115, accesses=526913, hits=37278, hitRatio=7.07%%, cachingAccesses=37393, cachingHits=37278, cachingHitsRatio=99.69%%, evictions=0, evicted=0, evictedPerRun=NaN 2011-05-04 05:22:03,372 DEBUG org.apache.hadoop.hbase.io.hfile.LruBlockCache: LRU Stats: total=2.56 MB, free=196.61 MB, max=199.18 MB, blocks=115, accesses=526913, hits=37278, hitRatio=7.07%%, cachingAccesses=37393, cachingHits=37278, cachingHitsRatio=99.69%%, evictions=0, evicted=0, evictedPerRun=NaN 3/ master had some warning log, but region server did not any abnormal. -----邮件原件----- 发件人: [email protected] [mailto:[email protected]] 代表 Jean-Daniel Cryans 发送时间: 2011年5月6日 1:27 收件人: [email protected] 主题: Re: Hmaster has some warn logs. The master was trying to talk to the region server at 10.85.129.177 but it took more than 60 seconds to get an answer. J-D On Thu, May 5, 2011 at 5:40 AM, Gaojinchao <[email protected]> wrote: > In our test cluster. There is a lot of logs for socket timeout. > I try to dig it, but nothing. > Who have a clue? Thanks. > > Hbase version : 0.90.2 > > Logs: > 2011-05-04 05:13:05,856 WARN org.apache.hadoop.hbase.master.CatalogJanitor: > Failed scan of catalog table > java.net.SocketTimeoutException: Call to /10.85.129.177:60020 failed on > socket timeout exception: java.net.SocketTimeoutException: 60000 millis > timeout while waiting for channel to be ready for read. ch : > java.nio.channels.SocketChannel[connected local=/10.85.129.177:54980 > remote=/10.85.129.177:60020] > at > org.apache.hadoop.hbase.ipc.HBaseClient.wrapException(HBaseClient.java:802) > at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:775) > at > org.apache.hadoop.hbase.ipc.HBaseRPC$Invoker.invoke(HBaseRPC.java:257) > at $Proxy6.getRegionInfo(Unknown Source) > at > org.apache.hadoop.hbase.catalog.CatalogTracker.verifyRegionLocation(CatalogTracker.java:424) > at > org.apache.hadoop.hbase.catalog.CatalogTracker.getMetaServerConnection(CatalogTracker.java:272) > at > org.apache.hadoop.hbase.catalog.CatalogTracker.waitForMeta(CatalogTracker.java:331) > at > org.apache.hadoop.hbase.catalog.CatalogTracker.waitForMetaServerConnectionDefault(CatalogTracker.java:364) > at > org.apache.hadoop.hbase.catalog.MetaReader.fullScan(MetaReader.java:255) > at > org.apache.hadoop.hbase.catalog.MetaReader.fullScan(MetaReader.java:237) > at > org.apache.hadoop.hbase.master.CatalogJanitor.scan(CatalogJanitor.java:116) > at > org.apache.hadoop.hbase.master.CatalogJanitor.chore(CatalogJanitor.java:85) > at org.apache.hadoop.hbase.Chore.run(Chore.java:66) > Caused by: java.net.SocketTimeoutException: 60000 millis timeout while > waiting for channel to be ready for read. ch : > java.nio.channels.SocketChannel[connected local=/10.85.129.177:54980 > remote=/10.85.129.177:60020] > at > org.apache.hadoop.net.SocketIOWithTimeout.doIO(SocketIOWithTimeout.java:165) > at > org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:155) > at > org.apache.hadoop.net.SocketInputStream.read(SocketInputStream.java:128) > at java.io.FilterInputStream.read(FilterInputStream.java:116) > at > org.apache.hadoop.hbase.ipc.HBaseClient$Connection$PingInputStream.read(HBaseClient.java:299) > at java.io.BufferedInputStream.fill(BufferedInputStream.java:218) > at java.io.BufferedInputStream.read(BufferedInputStream.java:237) > at java.io.DataInputStream.readInt(DataInputStream.java:370) > at > org.apache.hadoop.hbase.ipc.HBaseClient$Connection.receiveResponse(HBaseClient.java:539) > at > org.apache.hadoop.hbase.ipc.HBaseClient$Connection.run(HBaseClient.java:477) >
