Nimi Wariboko Jr. created CASSANDRA-12882:
---------------------------------------------
Summary: Deadlock in MemtableAllocator
Key: CASSANDRA-12882
URL: https://issues.apache.org/jira/browse/CASSANDRA-12882
Project: Cassandra
Issue Type: Bug
Environment: Ubuntu 14.40
Cassandra 3.5
Reporter: Nimi Wariboko Jr.
Fix For: 3.5
Attachments: cassandra.yaml, threaddump.txt
I'm seeing an issue where a node will eventually lock up and their thread pools
- I looked into jstack, and a lot of threads are stuck in the Memtable Allocator
{code}
at java.util.concurrent.locks.LockSupport.park(LockSupport.java:304)
at
org.apache.cassandra.utils.concurrent.WaitQueue$AbstractSignal.awaitUninterruptibly(WaitQueue.java:279)
at
org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator.allocate(MemtableAllocator.java:198)
at
org.apache.cassandra.utils.memory.SlabAllocator.allocate(SlabAllocator.java:89)
at
org.apache.cassandra.utils.memory.ContextAllocator.allocate(ContextAllocator.java:57)
at
org.apache.cassandra.utils.memory.ContextAllocator.clone(ContextAllocator.java:47)
at
org.apache.cassandra.utils.memory.MemtableBufferAllocator.clone(MemtableBufferAllocator.java:41)
{code}
I looked into the code, and its not immediately apparent to me what thread
might hold the relevant lock.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
