Hi Ted, Thanks. Hbase version is: HBase 0.98.0.2.1.2.0-402-hadoop2 Data block encoding: DATA_BLOCK_ENCODING => 'DIFF'
I tried to run the hfile tool to scan, and it looks good though: hbase org.apache.hadoop.hbase.io.hfile.HFile -v -f hdfs://xxx/hbase/data/data/default/xxx/af7898973c510425fabb7c814ac8ba04/EOUT_T_SRD/10afed9b44024d02992cfd0409686658 Picked up JAVA_TOOL_OPTIONS: -Dfile.encoding=UTF-8 2015-05-18 18:34:33,406 INFO [main] Configuration.deprecation: fs.default.name is deprecated. Instead, use fs.defaultFS Scanning -> hdfs://xxx/hbase/data/data/default/xxx/af7898973c510425fabb7c814ac8ba04/EOUT_T_SRD/10afed9b44024d02992cfd0409686658 2015-05-18 18:34:33,800 INFO [main] hfile.CacheConfig: Allocating LruBlockCache with maximum size 386.7 M 2015-05-18 18:34:34,032 INFO [main] compress.CodecPool: Got brand-new decompressor [.snappy] Scanned kv count -> 13387493 Any thought or suggestion? Also if it is corrupted file, do you have guidance/link showing how to fix that? Thanks, Mike From: Ted Yu [mailto:yuzhih...@gmail.com] Sent: Tuesday, May 19, 2015 9:29 AM To: Fang, Mike Cc: user@hbase.apache.org; Dai, Kevin; Huang, Jianshi Subject: Re: How to set Timeout for get/scan operations without impacting others bq. Caused by: java.io.IOException: Invalid HFile block magic: \x00\x00\x00\x00\x00\x00\x00\x00 Looks like you have some corrupted HFile(s) in your cluster - which should be fixed first. Which hbase release are you using ? Do you use data block encoding ? You can use http://hbase.apache.org/book.html#_hfile_tool to do some investigation. Cheers On Mon, May 18, 2015 at 6:19 PM, Fang, Mike <chuf...@paypal.com<mailto:chuf...@paypal.com>> wrote: Hi Ted, Thanks for your information. My application queries the HBase, and for some of the queries it just hang there and throw exception after several minutes (5-8minutes). As a workaround, I try to set the timeout to a shorter time, so my app won’t hang for minutes but for several seconds. I tried to set both the time out to 1000 (1s). but it still hang for several minutes.Is this expected? Appreciate it if you know how I could fix the exception. Caused by: org.apache.hadoop.hbase.ipc.RemoteWithExtrasException(java.io.IOException): java.io.IOException: Could not seek StoreFileScanner[HFileScanner for reader reader=hdfs://xxx/hbase/data/data/default/xxx/af7898973c510425fabb7c814ac8ba04/EOUT_T_SRD/125acceb75d84724a089701c590a4d3d, compression=snappy, cacheConf=CacheConfig:enabled [cacheDataOnRead=true] [cacheDataOnWrite=false] [cacheIndexesOnWrite=false] [cacheBloomsOnWrite=false] [cacheEvictOnClose=false] [cacheCompressed=false], firstKey=addrv#34005240#US,_28409,_822|addre/F|rval#null|cust#1158923121468951849|addre#1095283883|1/EOUT_T_SRD:~/1430982000000/Put, lastKey=addrv#38035AC7#US,_60449,_4684|addre/F|rval#null|cust#1335211720509289817|addre#697997140|1/EOUT_T_SRD:~/1430982000000/Put, avgKeyLen=122, avgValueLen=187, entries=105492830, length=6880313695, cur=null] to key addrv#34B97AEC#FR,_06110,_41 route des breguieres|addre/F|rval#/EOUT_T_SRD:/LATEST_TIMESTAMP/DeleteFamily/vlen=0/mvcc=0 at org.apache.hadoop.hbase.regionserver.StoreFileScanner.seek(StoreFileScanner.java:165) at org.apache.hadoop.hbase.regionserver.StoreScanner.seekScanners(StoreScanner.java:317) at org.apache.hadoop.hbase.regionserver.StoreScanner.<init>(StoreScanner.java:176) at org.apache.hadoop.hbase.regionserver.HStore.getScanner(HStore.java:1847) at org.apache.hadoop.hbase.regionserver.HRegion$RegionScannerImpl.<init>(HRegion.java:3716) at org.apache.hadoop.hbase.regionserver.HRegion.instantiateRegionScanner(HRegion.java:1890) at org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:1876) at org.apache.hadoop.hbase.regionserver.HRegion.getScanner(HRegion.java:1853) at org.apache.hadoop.hbase.regionserver.HRegionServer.scan(HRegionServer.java:3090) at org.apache.hadoop.hbase.protobuf.generated.ClientProtos$ClientService$2.callBlockingMethod(ClientProtos.java:28861) at org.apache.hadoop.hbase.ipc.RpcServer.call(RpcServer.java:2008) at org.apache.hadoop.hbase.ipc.CallRunner.run(CallRunner.java:92) at org.apache.hadoop.hbase.ipc.SimpleRpcScheduler.consumerLoop(SimpleRpcScheduler.java:160) at org.apache.hadoop.hbase.ipc.SimpleRpcScheduler.access$000(SimpleRpcScheduler.java:38) at org.apache.hadoop.hbase.ipc.SimpleRpcScheduler$1.run(SimpleRpcScheduler.java:110) at java.lang.Thread.run(Thread.java:724) Caused by: java.io.IOException: Failed to read compressed block at 1253175503, onDiskSizeWithoutHeader=66428, preReadHeaderSize=33, header.length=33, header bytes: DATABLKE\x00\x00&3\x00\x00\xC3\xC9\x00\x00\x00\x01r\xC4-\xDF\x01\x00\x00@\x00\x00\x00&P at org.apache.hadoop.hbase.io.hfile.HFileBlock$FSReaderV2.readBlockDataInternal(HFileBlock.java:1451) at org.apache.hadoop.hbase.io.hfile.HFileBlock$FSReaderV2.readBlockData(HFileBlock.java:1314) at org.apache.hadoop.hbase.io.hfile.HFileReaderV2.readBlock(HFileReaderV2.java:355) at org.apache.hadoop.hbase.io.hfile.HFileBlockIndex$BlockIndexReader.loadDataBlockWithScanInfo(HFileBlockIndex.java:253) at org.apache.hadoop.hbase.io.hfile.HFileReaderV2$AbstractScannerV2.seekTo(HFileReaderV2.java:494) at org.apache.hadoop.hbase.io.hfile.HFileReaderV2$AbstractScannerV2.seekTo(HFileReaderV2.java:515) at org.apache.hadoop.hbase.regionserver.StoreFileScanner.seekAtOrAfter(StoreFileScanner.java:238) at org.apache.hadoop.hbase.regionserver.StoreFileScanner.seek(StoreFileScanner.java:153) ... 15 more Caused by: java.io.IOException: Invalid HFile block magic: \x00\x00\x00\x00\x00\x00\x00\x00 at org.apache.hadoop.hbase.io.hfile.BlockType.parse(BlockType.java:154) at org.apache.hadoop.hbase.io.hfile.BlockType.read(BlockType.java:165) at org.apache.hadoop.hbase.io.hfile.HFileBlock.<init>(HFileBlock.java:239) at org.apache.hadoop.hbase.io.hfile.HFileBlock$FSReaderV2.readBlockDataInternal(HFileBlock.java:1448 Thanks, Mike From: Ted Yu [mailto:yuzhih...@gmail.com<mailto:yuzhih...@gmail.com>] Sent: Monday, May 18, 2015 11:55 PM To: user@hbase.apache.org<mailto:user@hbase.apache.org> Cc: Fang, Mike; Dai, Kevin Subject: Re: How to set Timeout for get/scan operations without impacting others hbase.client.operation.timeout is used by HBaseAdmin operations, by RegionReplicaFlushHandler and by various HTable operations (including Get). hbase.rpc.timeout is for the RPC layer to define how long HBase client applications take for a remote call to time out. It uses pings to check connections but will eventually throw a TimeoutException. FYI On Sun, May 17, 2015 at 11:11 PM, Jianshi Huang <jianshi.hu...@gmail.com<mailto:jianshi.hu...@gmail.com>> wrote: Hi, I need to set tight timeout for get/scan operations and I think HBase Client already support it. I found three related keys: - hbase.client.operation.timeout - hbase.rpc.timeout - hbase.client.retries.number What's the difference between hbase.client.operation.timeout and hbase.rpc.timeout? My understanding is that hbase.rpc.timeout has larger scope than hbase. client.operation.timeout, so setting hbase.client.operation.timeout is safer. Am I correct? And any other property keys I can uses? -- Jianshi Huang LinkedIn: jianshi Twitter: @jshuang Github & Blog: http://huangjs.github.com/
