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Posted to commits@pulsar.apache.org by GitBox <gi...@apache.org> on 2020/05/21 18:43:09 UTC
[GitHub] [pulsar] guillaumepitel opened a new issue #7012: Null pointer exception when add ledger fails
guillaumepitel opened a new issue #7012:
URL: https://github.com/apache/pulsar/issues/7012
**Describe the bug**
Pulsar starts logging a lot of the following errors, then repeatedly fails to add ledger leading to problems in messages handling (the message flow speed goes down and start oscilating).
```
May 21 17:41:44 pulsar-dev-1 pulsar[10115]: 17:41:44.735 [bookkeeper-ml-scheduler-OrderedScheduler-5-0] ERROR org.apache.bookkeeper.mledger.impl.ManagedLedgerImpl - Failed to add entry for ledger 7516 in time-out 120 sec
May 21 17:41:44 pulsar-dev-1 pulsar[10115]: 17:41:44.736 [BookKeeperClientWorker-OrderedExecutor-4-0] WARN org.apache.bookkeeper.mledger.impl.OpAddEntry - [xxx/yyy/persistent/zzz-89] The add op is terminal legacy callback for entry 7516-151887 adding.
May 21 17:41:44 pulsar-dev-1 pulsar[10115]: 17:41:44.755 [bookkeeper-ml-workers-OrderedExecutor-3-0] ERROR org.apache.bookkeeper.common.util.SafeRunnable - Unexpected throwable caught
May 21 17:41:44 pulsar-dev-1 pulsar[10115]: java.lang.NullPointerException: null
May 21 17:41:44 pulsar-dev-1 pulsar[10115]: #011at org.apache.bookkeeper.mledger.impl.OpAddEntry.lambda$handleAddFailure$0(OpAddEntry.java:260) ~[org.apache.pulsar-managed-ledger-2.5.1.jar:2.5.1]
May 21 17:41:44 pulsar-dev-1 pulsar[10115]: #011at org.apache.bookkeeper.mledger.util.SafeRun$1.safeRun(SafeRun.java:32) ~[org.apache.pulsar-managed-ledger-2.5.1.jar:2.5.1]
May 21 17:41:44 pulsar-dev-1 pulsar[10115]: #011at org.apache.bookkeeper.common.util.SafeRunnable.run(SafeRunnable.java:36) [org.apache.bookkeeper-bookkeeper-common-4.10.0.jar:4.10.0]
May 21 17:41:44 pulsar-dev-1 pulsar[10115]: #011at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) [?:?]
May 21 17:41:44 pulsar-dev-1 pulsar[10115]: #011at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) [?:?]
May 21 17:41:44 pulsar-dev-1 pulsar[10115]: #011at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) [io.netty-netty-common-4.1.45.Final.jar:4.1.45.Final]
May 21 17:41:44 pulsar-dev-1 pulsar[10115]: #011at java.lang.Thread.run(Thread.java:834) [?:?]
```
**To Reproduce**
Nothing particular seems to trigger the problem, except there is a timeout to ledger creation
It happened repeatedly since we switched to 2.5.1. We have also sligthly increased the number of topics and namespaces used.
**Expected behavior**
Normal handling of ledger long creation is expected
**Screenshots**
Prometheus monitoring
**Desktop (please complete the following information):**
- OS: linux
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[GitHub] [pulsar] sijie commented on issue #7012: Null pointer exception when add ledger fails
Posted by GitBox <gi...@apache.org>.
sijie commented on issue #7012:
URL: https://github.com/apache/pulsar/issues/7012#issuecomment-686925002
@guillaumepitel I fixed the NPE issue in 2.6.0. Please try 2.6.0+ release.
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[GitHub] [pulsar] sijie closed issue #7012: Null pointer exception when add ledger fails
Posted by GitBox <gi...@apache.org>.
sijie closed issue #7012:
URL: https://github.com/apache/pulsar/issues/7012
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