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https://issues.apache.org/jira/browse/HDDS-15314?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Siyao Meng updated HDDS-15314:
------------------------------
Priority: Blocker (was: Major)
> Disable defrag DB metrics due to crash during snapshot defrag
> -------------------------------------------------------------
>
> Key: HDDS-15314
> URL: https://issues.apache.org/jira/browse/HDDS-15314
> Project: Apache Ozone
> Issue Type: Sub-task
> Components: Ozone Manager
> Reporter: Siyao Meng
> Assignee: Siyao Meng
> Priority: Blocker
>
> During snapshot defrag scale testing, Ozone Manager crashed in native RocksDB
> JNI code while the Hadoop Metrics2 timer was collecting generic RocksDB DB
> properties. The crash happened twice in the same setup.
> {code}
> #
> # A fatal error has been detected by the Java Runtime Environment:
> #
> # SIGSEGV (0xb) at pc=0x00007f0bee21ed7d, pid=711089, tid=0x00007f0be71c0700
> #
> # JRE version: OpenJDK Runtime Environment (8.0_232-b09) (build 1.8.0_232-b09)
> # Java VM: OpenJDK 64-Bit Server VM (25.232-b09 mixed mode linux-amd64
> compressed oops)
> # Problematic frame:
> # C [librocksdbjni-linux64.so+0x3c3d7d]
> rocksdb::DBImpl::GetProperty(rocksdb::ColumnFamilyHandle*, rocksdb::Slice
> const&, std::string*)+0x5d
> ...
> {code}
> DB metrics should not have been enabled for defrag DBs in the first place.
> And previously it had been disabled for snapshot DBs in HDDS-12193
> (https://github.com/apache/ozone/commit/ad0debf5e1b) by default. Similar
> measure needs to be taken for defrag DBs as well.
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