ingard mevåg created CASSANDRA-14826:
----------------------------------------
Summary: cassandra spinning forever on 1 thread while initializing
keyspace
Key: CASSANDRA-14826
URL: https://issues.apache.org/jira/browse/CASSANDRA-14826
Project: Cassandra
Issue Type: Bug
Reporter: ingard mevåg
Attachments: Screen Shot 2018-10-16 at 14.51.27.png
When starting cassandra 3.0.17 it takes a long time to initialize a keyspace.
top shows 1 thread spinning at 100% cpu. Thread dump shows:
```
"main" - Thread t@1 java.lang.Thread.State: RUNNABLE at
java.util.TimSort.mergeHi(TimSort.java:850) at
java.util.TimSort.mergeAt(TimSort.java:516) at
java.util.TimSort.mergeCollapse(TimSort.java:441) at
java.util.TimSort.sort(TimSort.java:245) at
java.util.Arrays.sort(Arrays.java:1512) at
java.util.ArrayList.sort(ArrayList.java:1454) at
java.util.Collections.sort(Collections.java:175) at
org.apache.cassandra.db.compaction.LeveledManifest.canAddSSTable(LeveledManifest.java:243)
at
org.apache.cassandra.db.compaction.LeveledManifest.add(LeveledManifest.java:146)
- locked <c89b563> (a
org.apache.cassandra.db.compaction.LeveledManifest) at
org.apache.cassandra.db.compaction.LeveledCompactionStrategy.addSSTable(LeveledCompactionStrategy.java:298)
at
org.apache.cassandra.db.compaction.CompactionStrategyManager.startup(CompactionStrategyManager.java:135)
at
org.apache.cassandra.db.compaction.CompactionStrategyManager.reload(CompactionStrategyManager.java:187)
- locked <742bfce7> (a
org.apache.cassandra.db.compaction.CompactionStrategyManager) at
org.apache.cassandra.db.compaction.CompactionStrategyManager.<init>(CompactionStrategyManager.java:75)
at
org.apache.cassandra.db.ColumnFamilyStore.<init>(ColumnFamilyStore.java:408)
at
org.apache.cassandra.db.ColumnFamilyStore.<init>(ColumnFamilyStore.java:363)
at
org.apache.cassandra.db.ColumnFamilyStore.createColumnFamilyStore(ColumnFamilyStore.java:579)
- locked <4e4f20d2> (a java.lang.Class) at
org.apache.cassandra.db.ColumnFamilyStore.createColumnFamilyStore(ColumnFamilyStore.java:556)
at org.apache.cassandra.db.Keyspace.initCf(Keyspace.java:368)
at org.apache.cassandra.db.Keyspace.<init>(Keyspace.java:305) at
org.apache.cassandra.db.Keyspace.open(Keyspace.java:129) - locked
<5318346c> (a java.lang.Class) at
org.apache.cassandra.db.Keyspace.open(Keyspace.java:106) at
org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:262)
at
org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:569)
at
org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:697)
```
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