# Logging

# Copy Log File

Copy log file to the Docker host on which Axibase Collector container is running:

docker cp axibase-collector:/opt/axibase-collector/logs/axibase-collector.log ./

# Copy All Log Files

Archive log files from the Docker host on which Axibase Collector container is running:

docker exec -it axibase-collector tar cvf tmp/logs.tar.gz opt/axibase-collector/logs/

Copy the created archive to the Docker host on which Axibase Collector container is running:

docker cp axibase-collector:/tmp/logs.tar.gz ./

# Configure Collector to Exit and Dump Heap on OutOfMemory Error

Edit the ./axibase-collector/bin/start-collector.sh file.

Make the following changes by adding 3 lines after # Exit and dump heap on OoM after:

Before:

...
# GC_OPTS="-Xloggc:$LOGS/gc_$RANDOM.log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+PrintGC"
# COLLECTOR_JAVA_OPTS="$COLLECTOR_JAVA_OPTS $GC_OPTS"

COLLECTOR_PID_FILE="$BIN/collector.pid"

if type -p java > /dev/null 2>&1; then
...

After:

...
# GC_OPTS="-Xloggc:$LOGS/gc_$RANDOM.log -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCDateStamps -XX:+PrintGCTimeStamps -XX:+PrintGC"
# COLLECTOR_JAVA_OPTS="$COLLECTOR_JAVA_OPTS $GC_OPTS"

# Exit and dump heap on OoM
export JAVA_TOOL_OPTIONS="-XX:OnOutOfMemoryError=\"kill \-9 %p\""
OOM_OPTS="-XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=$LOGS"
COLLECTOR_JAVA_OPTS="$COLLECTOR_JAVA_OPTS $OOM_OPTS"

COLLECTOR_PID_FILE="$BIN/collector.pid"

if type -p java > /dev/null 2>&1; then
...