HBase Migration problem

rtomsej — Fri, 16 Sep 2022 09:01:05 GMT

Hi experts,

we are currently migrating from CDH3u4 to CDH5. Everything went smooth thanks to Cloudera manager. But we have problem with migrating from HBase 0.90.6 to HBase 0.96.1.1. I tried to copy tables by using CopyTable command (we have 5 zookeeper servers in quorum):

hbase org.apache.hadoop.hbase.mapreduce.CopyTable --peer.adr=zookeeper_server1,zookeeper_server2,zookeeper_server3,zookeeper_server4,zookeeper_server5:2181:/hbase --new.name=ip ip

The mapreduce job started, connection to zookeeper was established, but nothing has happened, and nothing is in log file:

2014-06-25 09:44:29,211 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection to server zookeeper_server1
2014-06-25 09:44:29,212 INFO org.apache.zookeeper.ClientCnxn: Socket connection established to zookeeper_server1, initiating session
2014-06-25 09:44:29,259 INFO org.apache.zookeeper.ClientCnxn: Session establishment complete on server zookeeper_server1, sessionid = 0x446cdf87bf005ec, negotiated timeout = 60000

Task is killed after 600 seconds:

Task attempt_201406121410_0411_m_000003_1 failed to report status for 600 seconds. Killing!

I also tried migrate data by using Export/Import feature of HBase (Export/Import). I have managed to export data and copy them to new server (discp). When i used command on destination cluster:

hbase -Dhbase.import.version=0.90 org.apache.hadoop.hbase.mapreduce.Import ip /user/rtomsej/ip3

Job was completed successfully, but no data was load:

14/06/25 09:04:58 INFO mapreduce.Job: Job job_1403615212297_0014 running in uber mode : false
14/06/25 09:04:58 INFO mapreduce.Job: map 0% reduce 0%
14/06/25 09:05:08 INFO mapreduce.Job: map 7% reduce 0%
14/06/25 09:05:11 INFO mapreduce.Job: map 43% reduce 0%
14/06/25 09:05:16 INFO mapreduce.Job: map 45% reduce 0%
14/06/25 09:05:18 INFO mapreduce.Job: map 50% reduce 0%
14/06/25 09:05:20 INFO mapreduce.Job: map 55% reduce 0%
14/06/25 09:05:21 INFO mapreduce.Job: map 57% reduce 0%
14/06/25 09:05:22 INFO mapreduce.Job: map 80% reduce 0%
14/06/25 09:05:23 INFO mapreduce.Job: map 86% reduce 0%
14/06/25 09:05:25 INFO mapreduce.Job: map 91% reduce 0%
14/06/25 09:05:26 INFO mapreduce.Job: map 98% reduce 0%
14/06/25 09:05:28 INFO mapreduce.Job: map 100% reduce 0%
14/06/25 09:05:28 INFO mapreduce.Job: Job job_1403615212297_0014 completed successfully
14/06/25 09:05:28 INFO mapreduce.Job: Counters: 30
File System Counters
FILE: Number of bytes read=0
FILE: Number of bytes written=5172058
FILE: Number of read operations=0
FILE: Number of large read operations=0
FILE: Number of write operations=0
HDFS: Number of bytes read=5452414893
HDFS: Number of bytes written=0
HDFS: Number of read operations=132
HDFS: Number of large read operations=0
HDFS: Number of write operations=0
Job Counters
Launched map tasks=44
Data-local map tasks=44
Total time spent by all maps in occupied slots (ms)=410004
Total time spent by all reduces in occupied slots (ms)=0
Total time spent by all map tasks (ms)=410004
Total vcore-seconds taken by all map tasks=410004
Total megabyte-seconds taken by all map tasks=419844096
Map-Reduce Framework
Map input records=9964456
Map output records=0
Input split bytes=5720
Spilled Records=0
Failed Shuffles=0
Merged Map outputs=0
GC time elapsed (ms)=7648
CPU time spent (ms)=117230
Physical memory (bytes) snapshot=17097363456
Virtual memory (bytes) snapshot=68115570688
Total committed heap usage (bytes)=26497384448
File Input Format Counters
Bytes Read=5452409173
File Output Format Counters
Bytes Written=0

When I look into log no error is here, but in Hbase table I could not find any data&colon;

2014-06-25 09:05:07,492 INFO [main] org.apache.hadoop.hbase.mapreduce.TableOutputFormat: Created table instance for ip
2014-06-25 09:05:07,526 INFO [main] org.apache.hadoop.mapred.Task: Using ResourceCalculatorProcessTree : [ ]
2014-06-25 09:05:07,784 INFO [main] org.apache.hadoop.mapred.MapTask: Processing split: hdfs://cz-dc1-v-197.mall.local:8020/user/rtomsej/ip3/part-m-00000:0+134217728
2014-06-25 09:05:07,833 INFO [main] org.apache.zookeeper.ZooKeeper: Initiating client connection, connectString=cz-dc1-s-133.mall.local:2181,cz-dc1-s-135.mall.local:2181,cz-dc1-s-132.mall.local:2181,cz-dc1-s-134.mall.local:2181,cz-dc1-s-136.mall.local:2181 sessionTimeout=60000 watcher=attempt_1403615212297_0014_m_000000_0, quorum=cz-dc1-s-133.mall.local:2181,cz-dc1-s-135.mall.local:2181,cz-dc1-s-132.mall.local:2181,cz-dc1-s-134.mall.local:2181,cz-dc1-s-136.mall.local:2181, baseZNode=/hbase
2014-06-25 09:05:07,834 INFO [main] org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper: Process identifier=attempt_1403615212297_0014_m_000000_0 connecting to ZooKeeper ensemble=cz-dc1-s-133.mall.local:2181,cz-dc1-s-135.mall.local:2181,cz-dc1-s-132.mall.local:2181,cz-dc1-s-134.mall.local:2181,cz-dc1-s-136.mall.local:2181
2014-06-25 09:05:07,835 INFO [main-SendThread(cz-dc1-s-133.mall.local:2181)] org.apache.zookeeper.ClientCnxn: Opening socket connection to server cz-dc1-s-133.mall.local/10.1.16.133:2181. Will not attempt to authenticate using SASL (unknown error)
2014-06-25 09:05:07,835 INFO [main-SendThread(cz-dc1-s-133.mall.local:2181)] org.apache.zookeeper.ClientCnxn: Socket connection established to cz-dc1-s-133.mall.local/10.1.16.133:2181, initiating session
2014-06-25 09:05:07,849 INFO [main-SendThread(cz-dc1-s-133.mall.local:2181)] org.apache.zookeeper.ClientCnxn: Session establishment complete on server cz-dc1-s-133.mall.local/10.1.16.133:2181, sessionid = 0x446cdf87bf005ad, negotiated timeout = 60000
2014-06-25 09:05:07,871 INFO [main] org.apache.zookeeper.ZooKeeper: Session: 0x446cdf87bf005ad closed
2014-06-25 09:05:07,871 INFO [main-EventThread] org.apache.zookeeper.ClientCnxn: EventThread shut down
2014-06-25 09:05:10,479 INFO [main] org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation: Closing zookeeper sessionid=0x346cdf87bc805a9
2014-06-25 09:05:10,494 INFO [main] org.apache.zookeeper.ZooKeeper: Session: 0x346cdf87bc805a9 closed
2014-06-25 09:05:10,494 INFO [main-EventThread] org.apache.zookeeper.ClientCnxn: EventThread shut down
2014-06-25 09:05:10,595 INFO [main] org.apache.hadoop.mapred.Task: Task:attempt_1403615212297_0014_m_000000_0 is done. And is in the process of committing
2014-06-25 09:05:10,666 INFO [main] org.apache.hadoop.mapred.Task: Task 'attempt_1403615212297_0014_m_000000_0' done.

I would appreciate any idea, thank you so much!

Re: HBase Migration problem

rtomsej — Wed, 25 Jun 2014 13:17:40 GMT

It seams that problem was in command:

hbase -Dhbase.import.version=0.90 org.apache.hadoop.hbase.mapreduce.Import ip /user/rtomsej/ip3

When I modified it like this, whole job went ok:

hbase -Dhbase.import.version=0.94 org.apache.hadoop.hbase.mapreduce.Import ip /user/rtomsej/ip3

Think that import.version=0.90 is not supported.

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HBase Migration problem

Re: HBase Migration problem