Brad Schoening created CASSANDRA-18184: ------------------------------------------
Summary: Maximum memory usage reached chunk cache message doesn't specify which cache is exhausted Key: CASSANDRA-18184 URL: https://issues.apache.org/jira/browse/CASSANDRA-18184 Project: Cassandra Issue Type: Bug Reporter: Brad Schoening With Cassandra 4.0.x, we are seeing this message very frequently on the majority of our Cassandra 4.0 clusters: _[INFO ] [epollEventLoopGroup-5-3] cluster_id=99 ip_address=127.0.0.50 NoSpamLogger.java:92 - Maximum memory usage reached (128.000MiB), cannot allocate chunk of 8.000MiB_ It took me several weeks to track down what it means, until I saw this start-up message _BufferPools.java:49 - Global buffer pool limit is 2.000GiB for chunk-cache and 128.000MiB for networking_ The maximum memory usage warning would benefit from clarifying that its the {*}network cache{*}, not the *off-heap chunk* *cache* which is exhausted. With 'chunk cache' in both warning messages, they're too easily confused. -- This message was sent by Atlassian Jira (v8.20.10#820010) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org