Shashikant Banerjee created HDDS-1789:
-----------------------------------------
Summary: BlockOutputStream#watchForCommit fails with
UnsupportedOperationException
Key: HDDS-1789
URL: https://issues.apache.org/jira/browse/HDDS-1789
Project: Hadoop Distributed Data Store
Issue Type: Bug
Components: Ozone Client
Affects Versions: 0.5.0
Reporter: Shashikant Banerjee
Assignee: Shashikant Banerjee
Fix For: 0.5.0
{code:java}
```2019-07-12 08:45:17,981 ERROR ozone.MiniOzoneLoadGenerator
(MiniOzoneLoadGenerator.java:load(105)) - LOADGEN: Create
key:pool-444-thread-5-1328179725 failed with exception, skipping
java.lang.UnsupportedOperationException
at java.util.AbstractList.add(AbstractList.java:148)
at java.util.AbstractList.add(AbstractList.java:108)
at java.util.AbstractCollection.addAll(AbstractCollection.java:344)
at
org.apache.hadoop.hdds.scm.storage.BlockOutputStream.watchForCommit(BlockOutputStream.java:363)
at
org.apache.hadoop.hdds.scm.storage.BlockOutputStream.handleFullBuffer(BlockOutputStream.java:332)
at
org.apache.hadoop.hdds.scm.storage.BlockOutputStream.write(BlockOutputStream.java:259)
at
org.apache.hadoop.ozone.client.io.BlockOutputStreamEntry.write(BlockOutputStreamEntry.java:129)
at
org.apache.hadoop.ozone.client.io.KeyOutputStream.handleWrite(KeyOutputStream.java:211)
at
org.apache.hadoop.ozone.client.io.KeyOutputStream.write(KeyOutputStream.java:193)
at
org.apache.hadoop.ozone.client.io.OzoneOutputStream.write(OzoneOutputStream.java:49)
at java.io.OutputStream.write(OutputStream.java:75)
at
org.apache.hadoop.ozone.MiniOzoneLoadGenerator.load(MiniOzoneLoadGenerator.java:103)
at
org.apache.hadoop.ozone.MiniOzoneLoadGenerator.lambda$startIO$0(MiniOzoneLoadGenerator.java:152)
at
java.util.concurrent.CompletableFuture$AsyncRun.run(CompletableFuture.java:1626)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)```
ye ek aur issue hai from Chaos
please raise a bug
Shashikant Banerjee [9:56 AM]
okk
actually jstacks are taken at 15 min interval
i am yet to find any common hanging thread among all the 3 jstacks
Mukul Kumar Singh [10:00 AM]
2nd file mein
```java.lang.Thread.State: WAITING (parking)
at sun.misc.Unsafe.park(Native Method)
- parking to wait for <0x00007fb5b29ed228> (a
java.util.concurrent.locks.ReentrantReadWriteLock$NonfairSync)
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:175)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.parkAndCheckInterrupt(AbstractQueuedSynchronizer.java:836)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireShared(AbstractQueuedSynchronizer.java:967)
at
java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireShared(AbstractQueuedSynchronizer.java:1283)
at
java.util.concurrent.locks.ReentrantReadWriteLock$ReadLock.lock(ReentrantReadWriteLock.java:727)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.readLock(FSNamesystem.java:1595)
at
org.apache.hadoop.hdfs.server.namenode.FSNamesystem.handleHeartbeat(FSNamesystem.java:4894)
at
org.apache.hadoop.hdfs.server.namenode.NameNodeRpcServer.sendHeartbeat(NameNodeRpcServer.java:1438)
at
org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolServerSideTranslatorPB.sendHeartbeat(DatanodeProtocolServerSideTranslatorPB.java:118)
at
org.apache.hadoop.hdfs.protocol.proto.DatanodeProtocolProtos$DatanodeProtocolService$2.callBlockingMethod(DatanodeProtocolProtos.java:31228)
at
org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:640)
at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:982)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2351)
at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2347)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1866)
at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2347)```
{code}
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