Ho creato un nuovo cluster Hadoop (contenente 6macchine) con HDP 2.5. L'installazione ha funzionato bene e nei primi minuti tutto sembrava funzionare correttamente. Ma dopo alcuni minuti, due dei servizi HBase hanno smesso di funzionare:
- HBase / host1.mydomain.de
- HBase Master Process: Connessione fallita [Errno 111] Connessione ridotta a host1.mydomain.de
- HBase / host6.mydomain.de
- Processo HBase RegionServer: connessione non riuscita [Errno 111] Connessione rifiutata su host6.mydomain.de
Mentre cercavo su Internet per questo problema, ho trovato questi suggerimenti:
- controlla e abilita NTPD (abilitato prima dell'installazione, ancora disabilitato)
- controlla e disabilita Firewall (disabilitato prima dell'installazione, ancora disabilitato)
- controlla e disabilita SELinux (disabilitato prima dell'installazione, ancora disabilitato)
Il punto è che tutti i servizi erano in esecuzione all'inizio, quindi i servizi sopra elencati dovrebbero essere configurati correttamente!
Posso dire quanto segue alla mia configurazione del cluster:
- l'host Ambari-Server (host1) può raggiungere tutti gli altri host tramite ping e può connettersi senza password per SSH
- i componenti installati sono HDFS, YARN, MR2, Tez, Hive, HBase, Pig, ZooKeeper, AmbariMetrics, Knox, Spark, Slider
- Ho lasciato tutte le impostazioni predefinite durante l'installazione e ho ignorato il seguente avviso:
Il file di registro /var/log/hbase/hbase-hbase-master-host1.domain.de.log contiene lo snippet seguente (gli indirizzi IP sono anneriti da a.a.a.a / b.b.b.b / x.x.x.x / y.y.y.y / z.z.z.z):
2016-11-22 18:50:53,007 INFO [master/host1.xxx.de/xxx.xxx.xxx.xxx:16000] client.ZooKeeperRegistry: ClusterId read in ZooKeeper is null
2016-11-22 18:51:59,581 INFO [Thread-70] hdfs.DFSClient: Exception in createBlockOutputStream
java.io.IOException: Got error, status message , ack with firstBadLink as bbb.bbb.bbb.bbb:50010
at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1393)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1295)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:463)
2016-11-22 18:51:59,584 INFO [Thread-70] hdfs.DFSClient: Abandoning BP-90489822-xxx.xxx.xxx.xxx-1479836232259:blk_1073741825_1001
2016-11-22 18:51:59,597 INFO [Thread-70] hdfs.DFSClient: Excluding datanode DatanodeInfoWithStorage[bbb.bbb.bbb.bbb:50010,DS-7691d8f6-0c76-4780-9836-85f20f935dd6,DISK]
2016-11-22 18:52:33,674 INFO [Thread-70] hdfs.DFSClient: Exception in createBlockOutputStream
java.io.IOException: Got error, status message , ack with firstBadLink as zzz.zzz.zzz.zzz:50010
at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1393)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1295)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:463)
2016-11-22 18:52:33,675 INFO [Thread-70] hdfs.DFSClient: Abandoning BP-90489822-xxx.xxx.xxx.xxx-1479836232259:blk_1073741837_1013
2016-11-22 18:52:33,683 INFO [Thread-70] hdfs.DFSClient: Excluding datanode DatanodeInfoWithStorage[zzz.zzz.zzz.zzz:50010,DS-15d2586e-09a9-41ed-898d-689e15cd6596,DISK]
2016-11-22 18:52:33,771 WARN [host1:16000.activeMasterManager] hdfs.DFSClient: Slow waitForAckedSeqno took 100584ms (threshold=30000ms)
2016-11-22 18:52:33,797 INFO [host1:16000.activeMasterManager] util.FSUtils: Created version file at hdfs://host1.xxx.de:8020/apps/hbase/data with version=8
2016-11-22 18:52:36,820 INFO [Thread-76] hdfs.DFSClient: Exception in createBlockOutputStream
java.io.IOException: Got error, status message , ack with firstBadLink as yyy.yyy.yyy.yyy:50010
at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1393)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1295)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:463)
2016-11-22 18:52:36,821 INFO [Thread-76] hdfs.DFSClient: Abandoning BP-90489822-xxx.xxx.xxx.xxx-1479836232259:blk_1073741843_1019
2016-11-22 18:52:36,828 INFO [Thread-76] hdfs.DFSClient: Excluding datanode DatanodeInfoWithStorage[yyy.yyy.yyy.yyy:50010,DS-439b87d1-f08d-464c-b0e2-728987cd211d,DISK]
2016-11-22 18:52:37,567 INFO [Thread-76] hdfs.DFSClient: Exception in createBlockOutputStream
java.io.IOException: Got error, status message , ack with firstBadLink as zzz.zzz.zzz.zzz:50010
at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1393)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1295)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:463)
2016-11-22 18:52:37,567 INFO [Thread-76] hdfs.DFSClient: Abandoning BP-90489822-xxx.xxx.xxx.xxx-1479836232259:blk_1073741845_1021
2016-11-22 18:52:37,575 INFO [Thread-76] hdfs.DFSClient: Excluding datanode DatanodeInfoWithStorage[zzz.zzz.zzz.zzz:50010,DS-15d2586e-09a9-41ed-898d-689e15cd6596,DISK]
2016-11-22 18:52:40,589 INFO [Thread-76] hdfs.DFSClient: Exception in createBlockOutputStream
java.io.IOException: Got error, status message , ack with firstBadLink as aaa.aaa.aaa.aaa:50010
at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1393)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1295)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:463)
2016-11-22 18:52:40,589 INFO [Thread-76] hdfs.DFSClient: Abandoning BP-90489822-xxx.xxx.xxx.xxx-1479836232259:blk_1073741846_1022
2016-11-22 18:52:40,593 INFO [Thread-76] hdfs.DFSClient: Excluding datanode DatanodeInfoWithStorage[aaa.aaa.aaa.aaa:50010,DS-15ea9223-2b1b-4f86-8797-ff0e2aaa6787,DISK]
2016-11-22 18:52:40,694 INFO [host1:16000.activeMasterManager] master.MasterFileSystem: BOOTSTRAP: creating hbase:meta region
2016-11-22 18:52:40,699 INFO [host1:16000.activeMasterManager] regionserver.HRegion: creating HRegion hbase:meta HTD == "hbase:meta", {TABLE_ATTRIBUTES => {IS_META => "true", coprocessor$1 => "|org.apache.hadoop.hbase.coprocessor.Mul$
2016-11-22 18:52:43,741 INFO [Thread-79] hdfs.DFSClient: Exception in createBlockOutputStream
java.io.IOException: Got error, status message , ack with firstBadLink as yyy.yyy.yyy.yyy:50010
at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1393)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1295)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:463)
2016-11-22 18:52:43,742 INFO [Thread-79] hdfs.DFSClient: Abandoning BP-90489822-xxx.xxx.xxx.xxx-1479836232259:blk_1073741848_1024
2016-11-22 18:52:43,744 INFO [Thread-79] hdfs.DFSClient: Excluding datanode DatanodeInfoWithStorage[yyy.yyy.yyy.yyy:50010,DS-fc167096-246b-4215-b344-be786d98c472,DISK]
2016-11-22 18:52:46,760 INFO [Thread-79] hdfs.DFSClient: Exception in createBlockOutputStream
java.io.IOException: Got error, status message , ack with firstBadLink as zzz.zzz.zzz.zzz:50010
at org.apache.hadoop.hdfs.protocol.datatransfer.DataTransferProtoUtil.checkBlockOpStatus(DataTransferProtoUtil.java:140)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.createBlockOutputStream(DFSOutputStream.java:1393)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.nextBlockOutputStream(DFSOutputStream.java:1295)
at org.apache.hadoop.hdfs.DFSOutputStream$DataStreamer.run(DFSOutputStream.java:463)
2016-11-22 18:52:46,760 INFO [Thread-79] hdfs.DFSClient: Abandoning BP-90489822-xxx.xxx.xxx.xxx-1479836232259:blk_1073741849_1025
2016-11-22 18:52:46,766 INFO [Thread-79] hdfs.DFSClient: Excluding datanode DatanodeInfoWithStorage[zzz.zzz.zzz.zzz:50010,DS-c1dc059d-8f0b-4971-88cc-ebc76dd8659a,DISK]
Qualcuno può dare un'idea del perché questi (e solo questi) due servizi si fermano dopo pochi minuti?
risposte:
0 per risposta № 1Ho avuto lo stesso problema prima ZooKeeperRegistry: ClusterId read in ZooKeeper is null
In Hbase -> config -> hbase-site.xml ha cambiato il valore di zookeeper.znode.parent a /hbase-unsecure e riavviato i servizi