Stefan Miklosovic created CASSANDRA-18862:
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Summary: Fix logging / exception output on mismatched cache and
schema version
Key: CASSANDRA-18862
URL: https://issues.apache.org/jira/browse/CASSANDRA-18862
Project: Cassandra
Issue Type: Improvement
Components: Local/Caching
Reporter: Stefan Miklosovic
Sometimes I see this in the logs:
{code}
INFO [loadSavedCache:1] 2023-09-18 08:53:05,395 AutoSavingCache.java:214 -
Reading saved cache:
/home/fermat/dev/cassandra/cassandra-instaclustr/cassandra/data/saved_caches/KeyCache-g.db,
/home/fermat/dev/cassandra/cassandra-instaclustr/cassandra/data/saved_caches/KeyCache-g.crc,
/home/fermat/dev/cassandra/cassandra-instaclustr/cassandra/data/saved_caches/KeyCache-g.metadata
INFO [loadSavedCache:1] 2023-09-18 08:53:05,403 AutoSavingCache.java:277 -
Harmless error reading saved cache
/home/fermat/dev/cassandra/cassandra-instaclustr/cassandra/data/saved_caches/KeyCache-g.db
java.lang.RuntimeException: Cache schema version
e40b993e-88c0-314c-8a5e-c76871f0a144 does not match current schema version
f1884cc9-7d66-3b5f-85e5-4bc0d647c885
at
org.apache.cassandra.cache.AutoSavingCache.loadSaved(AutoSavingCache.java:228)
at org.apache.cassandra.concurrent.FutureTask.call(FutureTask.java:61)
at org.apache.cassandra.concurrent.FutureTask.run(FutureTask.java:71)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at
io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.base/java.lang.Thread.run(Thread.java:829)
{code}
Well if the log says it is harmless, why do we need to log the exception? There
is no reason to print that stacktrace, it is just enough to print the
mismatching versions. It should be also changed from INFO to WARN.
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