smiklosovic commented on code in PR #4166:
URL: https://github.com/apache/cassandra/pull/4166#discussion_r2116289964
##########
conf/cassandra-env.sh:
##########
@@ -199,6 +199,45 @@ if [ "x$CASSANDRA_HEAPDUMP_DIR" = "x" ]; then
fi
JVM_OPTS="$JVM_OPTS -XX:HeapDumpPath=$CASSANDRA_HEAPDUMP_DIR/cassandra-`date
+%s`-pid$$.hprof"
+# by default, enable cassandra heapdump files clean up, keeping 2 latest files
+# and 1 oldest heap dump file (this may help identify the earliest OOM issue)
+if [ "x$CASSANDRA_HEAPDUMP_CLEAN" = "x" ]; then
+ CASSANDRA_HEAPDUMP_CLEAN=1
+fi
+if [ "x$CASSANDRA_HEAPDUMP_KEEP_LAST_N_FILES" = "x" ]; then
+ CASSANDRA_HEAPDUMP_KEEP_LAST_N_FILES=2
+fi
+if [ "x$CASSANDRA_HEAPDUMP_KEEP_FIRST_N_FILES" = "x" ]; then
+ CASSANDRA_HEAPDUMP_KEEP_FIRST_N_FILES=1
+fi
+
+# this flag identifies that 'cassandra-env.sh' function
+# clean_heap_dump_files has been loaded and should be called.
+# this flag can be reset in bin/cassandra if -H option is passed.
+call_clean_heap_dump_files=1
+
+clean_heap_dump_files()
+{
+ if [ "x$CASSANDRA_HEAPDUMP_CLEAN" = "x1" ] && \
+ [ "$CASSANDRA_HEAPDUMP_KEEP_LAST_N_FILES" -ge 0 ] && \
+ [ "$CASSANDRA_HEAPDUMP_KEEP_FIRST_N_FILES" -ge 0 ] && \
+ [ -d "$CASSANDRA_HEAPDUMP_DIR" ]; then
+ # find heap dump files, take not more than 100 of them (in order not
to overload xargs),
+ # sort by last modification date descending
+ # print those, that need to be removed
+ find "$CASSANDRA_HEAPDUMP_DIR" -name "cassandra-*-pid*.hprof" -type f
| \
Review Comment:
you can use `ls -p | grep -v / | grep cassandra-*-pid*.hprof` to exclude dirs
_And only then ls -t1 is used, because Internet suggests not to parse its
output._
Sorry I am not getting this.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: pr-unsubscr...@cassandra.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: pr-unsubscr...@cassandra.apache.org
For additional commands, e-mail: pr-h...@cassandra.apache.org
