Garbage log file taking too much space

[Sajin]

gc-core-* File is taking too much space on the device. It increases to 3-5 GB in single file few weeks time.
Which settings needs to set to false or reduce log level for preventing it?

 

[Max]

Please clarify what WCS version do you use? In latest versions, hourly gc-core-* log rotation is enabled.

It increases to 3-5 GB in single file few weeks time

This can mean a server perfomance problem and may require some tuning. Please show us the tail of this big file, we will check.

 

[Sajin]

2018-12-18T05:35:32.751+0000: 4562285.820: [GC (CMS Final Remark) [YG occupancy: 695856 K (943680 K)]2018-12-18T05:35:32.752+0000: 4562285.820: [Rescan (parallel) , 0.1680778 secs]2018-12-18T05:35:32.920+0000: 4562285.989: [weak refs processing, 0.0000233 secs]2018-12-18T05:35:32.920+0000: 4562285.989: [class unloading, 0.0098865 secs]2018-12-18T05:35:32.930+0000: 4562285.998: [scrub symbol table, 0.0027325 secs]2018-12-18T05:35:32.932+0000: 4562286.001: [scrub string table, 0.0005597 secs][1 CMS-remark: 63K(64K)] 695920K(943744K), 0.1847955 secs] [Times: user=0.69 sys=0.00, real=0.19 secs]
2018-12-18T05:35:32.936+0000: 4562286.005: [CMS-concurrent-sweep-start]
2018-12-18T05:35:32.936+0000: 4562286.005: [CMS-concurrent-sweep: 0.000/0.000 secs] [Times: user=0.00 sys=0.00, real=0.00 secs]
2018-12-18T05:35:32.936+0000: 4562286.005: [CMS-concurrent-reset-start]
2018-12-18T05:35:32.936+0000: 4562286.005: [CMS-concurrent-reset: 0.000/0.000 secs] [Times: user=0.00 sys=0.00, real=0.00 secs]
2018-12-18T05:35:34.936+0000: 4562288.005: [GC (CMS Initial Mark) [1 CMS-initial-mark: 63K(64K)] 695920K(943744K), 0.1373560 secs] [Times: user=0.55 sys=0.00, real=0.13 secs]
2018-12-18T05:35:35.073+0000: 4562288.142: [CMS-concurrent-mark-start]
2018-12-18T05:35:35.074+0000: 4562288.142: [CMS-concurrent-mark: 0.000/0.000 secs] [Times: user=0.00 sys=0.00, real=0.00 secs]
2018-12-18T05:35:35.074+0000: 4562288.142: [CMS-concurrent-preclean-start]
2018-12-18T05:35:35.074+0000: 4562288.143: [CMS-concurrent-preclean: 0.000/0.000 secs] [Times: user=0.00 sys=0.00, real=0.00 secs]
2018-12-18T05:35:35.074+0000: 4562288.143: [CMS-concurrent-abortable-preclean-start]
2018-12-18T05:35:35.074+0000: 4562288.143: [CMS-concurrent-abortable-preclean: 0.000/0.000 secs] [Times: user=0.00 sys=0.00, real=0.00 secs]


These get repeated every second

 

[Max]

Good day.
It seems like the memory is not enough for your server load. Try to allocate at least 1/2 of server physical memory for JVM heap memory as described here.

 

[Max]

Please try
- tuning GC (or comment out non default options related to GC, if any were added), and
- enable rotation by JVM (if the file is not rotated)
Try the attached default wcs-core.properties, or please send your config to support@flashphoner.com - we will check it.