My Solr instance is getting killed once in a week with OOM. I tried to tune the below parameter.. Need some recommendations.. Recommended values for these parameters based on the log provided: GC_TUNE="-XX:NewRatio=3 \
-XX:SurvivorRatio=4 \
-XX:TargetSurvivorRatio=90 \
-XX:MaxTenuringThreshold=8 \
-XX:+UseConcMarkSweepGC \
-XX:+UseParNewGC \
-XX:ConcGCThreads=4 -XX:ParallelGCThreads=4 \
-XX:+CMSScavengeBeforeRemark \
-XX:PretenureSizeThreshold=64m \
-XX:+UseCMSInitiatingOccupancyOnly \
-XX:CMSInitiatingOccupancyFraction=50 \
-XX:CMSMaxAbortablePrecleanTime=6000 \
-XX:+CMSParallelRemarkEnabled \
-XX:+ParallelRefProcEnabled"
And also:
Minimum Heap Size & Maximum Heap Size Log: Heap after GC invocations=19 (full 1):
par new generation total 218496K, used 7215K [0x00000006c0000000, 0x00000006d0000000, 0x0000000700000000)
eden space 174848K, 0% used [0x00000006c0000000, 0x00000006c0000000, 0x00000006caac0000)
from space 43648K, 16% used [0x00000006cd560000, 0x00000006cdc6bc78, 0x00000006d0000000)
to space 43648K, 0% used [0x00000006caac0000, 0x00000006caac0000, 0x00000006cd560000)
concurrent mark-sweep generation total 786432K, used 92764K [0x0000000700000000, 0x0000000730000000, 0x00000007c0000000)
Metaspace used 39260K, capacity 39748K, committed 40076K, reserved 1085440K
class space used 4267K, capacity 4422K, committed 4528K, reserved 1048576K
}
2017-11-21T14:30:19.916-0500: 117.112: Total time for which application threads were stopped: 0.0098877 seconds, Stopping threads took: 0.0000449 seconds
2017-11-21T14:30:20.916-0500: 118.112: Total time for which application threads were stopped: 0.0003058 seconds, Stopping threads took: 0.0001195 seconds
{Heap before GC invocations=19 (full 1):
par new generation total 218496K, used 182063K [0x00000006c0000000, 0x00000006d0000000, 0x0000000700000000)
eden space 174848K, 100% used [0x00000006c0000000, 0x00000006caac0000, 0x00000006caac0000)
from space 43648K, 16% used [0x00000006cd560000, 0x00000006cdc6bc78, 0x00000006d0000000)
to space 43648K, 0% used [0x00000006caac0000, 0x00000006caac0000, 0x00000006cd560000)
concurrent mark-sweep generation total 786432K, used 92764K [0x0000000700000000, 0x0000000730000000, 0x00000007c0000000)
Metaspace used 39262K, capacity 39748K, committed 40076K, reserved 1085440K
class space used 4267K, capacity 4422K, committed 4528K, reserved 1048576K
2017-11-21T14:30:28.151-0500: 125.346: [GC (Allocation Failure) 2017-11-21T14:30:28.151-0500: 125.346: [ParNew
Desired survivor size 40225992 bytes, new threshold 8 (max 8)
- age 1: 136184 bytes, 136184 total
- age 2: 1010336 bytes, 1146520 total
- age 3: 40472 bytes, 1186992 total
- age 4: 73744 bytes, 1260736 total
- age 5: 2934424 bytes, 4195160 total
- age 6: 24424 bytes, 4219584 total
- age 7: 111680 bytes, 4331264 total
- age 8: 56160 bytes, 4387424 total
: 182063K->5404K(218496K), 0.0065729 secs] 274827K->98648K(1004928K), 0.0066500 secs] [Times: user=0.02 sys=0.00, real=0.01 secs]
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