We are on Cassandra 2.2.5 and I am constantly seeing warning messages about large partitions in system.log even though our setting for partition warning threshold is set to 4096 (MB).
WARN [CompactionExecutor:43180] 2017-06-14 20:02:13,189 BigTableWriter.java:184 - Writing large partition tsg_ae/logs_by_user:114303419784957147 (17187 bytes) WARN [CompactionExecutor:43180] 2017-06-14 20:02:13,190 BigTableWriter.java:184 - Writing large partition tsg_ae/logs_by_user:820590487870502244 (2613 bytes) WARN [CompactionExecutor:43180] 2017-06-14 20:02:13,191 BigTableWriter.java:184 - Writing large partition tsg_ae/logs_by_user:421586605444858333 (54923 bytes) Here's what we have in cassandra.yaml. # Log a warning when compacting partitions larger than this value compaction_large_partition_warning_threshold_mb: 4096 So wondering if such a warning is normal or is there something wrong in our configuration or is it a bug? I have looked at https://issues.apache.org/jira/browse/CASSANDRA-9643. Any pointers will be greatly appreciated. Thanks, Jayesh