[
https://issues.apache.org/jira/browse/CASSANDRA-21390?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sam Lightfoot updated CASSANDRA-21390:
--------------------------------------
Description:
We have started seeing this fatal exception in Apache Cassandra 5.0.6 on one of
our clusters.
{code:java}
[ERROR] [MemtableReclaimMemory:1] cluster_id=xxx ip_address=xxx.xxx.xxx.xxx
JVMStabilityInspector.java:70 - Exception in thread
Thread[MemtableReclaimMemory:1,5,MemtableReclaimMemory]
java.lang.AssertionError: Negative released: -4332
at
org.apache.cassandra.utils.memory.MemtablePool$SubPool.released(MemtablePool.java:194)
at
org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator.releaseAll(MemtableAllocator.java:153)
at
org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator.setDiscarded(MemtableAllocator.java:144)
at
org.apache.cassandra.utils.memory.MemtableAllocator.setDiscarded(MemtableAllocator.java:95)
at
org.apache.cassandra.utils.memory.NativeAllocator.setDiscarded(NativeAllocator.java:205)
at
org.apache.cassandra.db.memtable.AbstractAllocatorMemtable.discard(AbstractAllocatorMemtable.java:171)
at org.apache.cassandra.db.memtable.TrieMemtable.discard(TrieMemtable.java:163)
at
org.apache.cassandra.db.ColumnFamilyStore$Flush$1.runMayThrow(ColumnFamilyStore.java:1398)
at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:26)
at
org.apache.cassandra.concurrent.ExecutionFailure$1.run(ExecutionFailure.java:133)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:842)
{code}
{code:yaml}
memtable_allocation_type: offheap_objects
file_cache_enabled: true
file_cache_size: 2048MiB
memtable:
configurations:
skiplist:
class_name: SkipListMemtable
trie:
class_name: TrieMemtable
default:
inherits: trie
{code}
it looks similar to the open MemtableReclaimMemory assert issue in
CASSANDRA-18159
Environment is RHEL 8.10 with OpenJDK 17 and 16GB heap, -ea enabled.
Reaper v3.8
was:
We have started seeing this fatal exception in Apache Cassandra 5.0.6 on one of
our clusters.
{code:java}
[ERROR] [MemtableReclaimMemory:1] cluster_id=xxx ip_address=xxx.xxx.xxx.xxx
JVMStabilityInspector.java:70 - Exception in thread
Thread[MemtableReclaimMemory:1,5,MemtableReclaimMemory]
java.lang.AssertionError: Negative released: -4332
at
org.apache.cassandra.utils.memory.MemtablePool$SubPool.released(MemtablePool.java:194)
at
org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator.releaseAll(MemtableAllocator.java:153)
at
org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator.setDiscarded(MemtableAllocator.java:144)
at
org.apache.cassandra.utils.memory.MemtableAllocator.setDiscarded(MemtableAllocator.java:95)
at
org.apache.cassandra.utils.memory.NativeAllocator.setDiscarded(NativeAllocator.java:205)
at
org.apache.cassandra.db.memtable.AbstractAllocatorMemtable.discard(AbstractAllocatorMemtable.java:171)
at org.apache.cassandra.db.memtable.TrieMemtable.discard(TrieMemtable.java:163)
at
org.apache.cassandra.db.ColumnFamilyStore$Flush$1.runMayThrow(ColumnFamilyStore.java:1398)
at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:26)
at
org.apache.cassandra.concurrent.ExecutionFailure$1.run(ExecutionFailure.java:133)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
at
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:842)
{code}
{code:yaml}
memtable_allocation_type: offheap_objects
file_cache_enabled: true
file_cache_size: 2048MiB
memtable:
configurations:
skiplist:
class_name: SkipListMemtable
trie:
class_name: TrieMemtable
default:
inherits: trie
{code}
it looks similar to the open MemtableReclaimMemory assert issue in
CASSANDRA-18159
Environment is RHEL 8.10 with OpenJDK 17 and 16GB heap, -ea enabled.
> TrieMemtable MemtableReclaimMemory AssertionError: Negative released in
> MemtablePool$SubPool
> --------------------------------------------------------------------------------------------
>
> Key: CASSANDRA-21390
> URL: https://issues.apache.org/jira/browse/CASSANDRA-21390
> Project: Apache Cassandra
> Issue Type: Bug
> Components: Local/Memtable
> Reporter: Praveen Reddy Arra
> Assignee: Dmitry Konstantinov
> Priority: Normal
> Attachments: findings_mask.md, image-2026-05-21-09-17-49-716.png,
> sstabledump
>
> Time Spent: 1h
> Remaining Estimate: 0h
>
> We have started seeing this fatal exception in Apache Cassandra 5.0.6 on one
> of our clusters.
> {code:java}
> [ERROR] [MemtableReclaimMemory:1] cluster_id=xxx ip_address=xxx.xxx.xxx.xxx
> JVMStabilityInspector.java:70 - Exception in thread
> Thread[MemtableReclaimMemory:1,5,MemtableReclaimMemory]
> java.lang.AssertionError: Negative released: -4332
> at
> org.apache.cassandra.utils.memory.MemtablePool$SubPool.released(MemtablePool.java:194)
> at
> org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator.releaseAll(MemtableAllocator.java:153)
> at
> org.apache.cassandra.utils.memory.MemtableAllocator$SubAllocator.setDiscarded(MemtableAllocator.java:144)
> at
> org.apache.cassandra.utils.memory.MemtableAllocator.setDiscarded(MemtableAllocator.java:95)
> at
> org.apache.cassandra.utils.memory.NativeAllocator.setDiscarded(NativeAllocator.java:205)
> at
> org.apache.cassandra.db.memtable.AbstractAllocatorMemtable.discard(AbstractAllocatorMemtable.java:171)
> at
> org.apache.cassandra.db.memtable.TrieMemtable.discard(TrieMemtable.java:163)
> at
> org.apache.cassandra.db.ColumnFamilyStore$Flush$1.runMayThrow(ColumnFamilyStore.java:1398)
> at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:26)
> at
> org.apache.cassandra.concurrent.ExecutionFailure$1.run(ExecutionFailure.java:133)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
> at
> java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
> at
> io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
> at java.base/java.lang.Thread.run(Thread.java:842)
> {code}
> {code:yaml}
> memtable_allocation_type: offheap_objects
> file_cache_enabled: true
> file_cache_size: 2048MiB
> memtable:
> configurations:
> skiplist:
> class_name: SkipListMemtable
> trie:
> class_name: TrieMemtable
> default:
> inherits: trie
> {code}
> it looks similar to the open MemtableReclaimMemory assert issue in
> CASSANDRA-18159
> Environment is RHEL 8.10 with OpenJDK 17 and 16GB heap, -ea enabled.
> Reaper v3.8
--
This message was sent by Atlassian Jira
(v8.20.10#820010)
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
