[
https://issues.apache.org/jira/browse/HDDS-2356?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Li Cheng reopened HDDS-2356:
----------------------------
Assignee: (was: Bharat Viswanadham)
> Multipart upload report errors while writing to ozone Ratis pipeline
> --------------------------------------------------------------------
>
> Key: HDDS-2356
> URL: https://issues.apache.org/jira/browse/HDDS-2356
> Project: Hadoop Distributed Data Store
> Issue Type: Bug
> Components: Ozone Manager
> Affects Versions: 0.4.1
> Environment: Env: 4 VMs in total: 3 Datanodes on 3 VMs, 1 OM & 1 SCM
> on a separate VM
> Reporter: Li Cheng
> Priority: Blocker
> Fix For: 0.5.0
>
>
> Env: 4 VMs in total: 3 Datanodes on 3 VMs, 1 OM & 1 SCM on a separate VM, say
> it's VM0.
> I use goofys as a fuse and enable ozone S3 gateway to mount ozone to a path
> on VM0, while reading data from VM0 local disk and write to mount path. The
> dataset has various sizes of files from 0 byte to GB-level and it has a
> number of ~50,000 files.
> The writing is slow (1GB for ~10 mins) and it stops after around 4GB. As I
> look at hadoop-root-om-VM_50_210_centos.out log, I see OM throwing errors
> related with Multipart upload. This error eventually causes the writing to
> terminate and OM to be closed.
>
> 2019-10-24 16:01:59,527 [OMDoubleBufferFlushThread] ERROR - Terminating with
> exit status 2: OMDoubleBuffer flush
> threadOMDoubleBufferFlushThreadencountered Throwable error
> java.util.ConcurrentModificationException
> at java.util.TreeMap.forEach(TreeMap.java:1004)
> at
> org.apache.hadoop.ozone.om.helpers.OmMultipartKeyInfo.getProto(OmMultipartKeyInfo.java:111)
> at
> org.apache.hadoop.ozone.om.codec.OmMultipartKeyInfoCodec.toPersistedFormat(OmMultipartKeyInfoCodec.java:38)
> at
> org.apache.hadoop.ozone.om.codec.OmMultipartKeyInfoCodec.toPersistedFormat(OmMultipartKeyInfoCodec.java:31)
> at
> org.apache.hadoop.hdds.utils.db.CodecRegistry.asRawData(CodecRegistry.java:68)
> at
> org.apache.hadoop.hdds.utils.db.TypedTable.putWithBatch(TypedTable.java:125)
> at
> org.apache.hadoop.ozone.om.response.s3.multipart.S3MultipartUploadCommitPartResponse.addToDBBatch(S3MultipartUploadCommitPartResponse.java:112)
> at
> org.apache.hadoop.ozone.om.ratis.OzoneManagerDoubleBuffer.lambda$flushTransactions$0(OzoneManagerDoubleBuffer.java:137)
> at java.util.Iterator.forEachRemaining(Iterator.java:116)
> at
> org.apache.hadoop.ozone.om.ratis.OzoneManagerDoubleBuffer.flushTransactions(OzoneManagerDoubleBuffer.java:135)
> at java.lang.Thread.run(Thread.java:745)
> 2019-10-24 16:01:59,629 [shutdown-hook-0] INFO - SHUTDOWN_MSG:
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: hdfs-dev-unsubscr...@hadoop.apache.org
For additional commands, e-mail: hdfs-dev-h...@hadoop.apache.org
