Re: too many dirty pages
Hello! If you see writes hang after seeing this message, it means that your checkpoint page buffer gets exhaused. Consider increasing it: https://apacheignite.readme.io/docs/durable-memory-tuning#section-checkpointing-buffer-size Regards, -- Ilya Kasnacheev вс, 23 июн. 2019 г. в 13:36, KR Kumar : > Hi - I have ignite persistence enabled cache that has about 100 cache > tables > that i created using Ignite SQL. When I am writing data ( lot of data ) in > these tables, I see these warnings in the logs and writes hang for some > time > and then resume. > > [2019-06-23 10:12:47,647][INFO > ][db-checkpoint-thread-#144][GridCacheDatabaseSharedManager] Checkpoint > started [checkpointId=d067e58d-d62d-4914-9ce8-531369e08c33, > startPtr=FileWALPointer [idx=214, fileOff=115119, len=2123305], > checkpointLockWait=0ms, checkpointLockHoldTime=1727ms, > walCpRecordFsyncDuration=2305ms, pages=304819, reason='too many dirty > pages'] > > Any pointers, please let me know ?? > > Thanx and Regards, > KR Kumar > > > > -- > Sent from: http://apache-ignite-users.70518.x6.nabble.com/ >
Re: too many dirty pages
Hi, It's not a warning, it's just an INFO message about writing checkpoint to the disk. The reason for this checkpoint was that there were "too many dirty pages". Here is how Ignite persistence works: https://cwiki.apache.org/confluence/display/IGNITE/Ignite+Persistent+Store+-+under+the+hood Best Regards, Evgenii вс, 23 июн. 2019 г. в 13:36, KR Kumar : > Hi - I have ignite persistence enabled cache that has about 100 cache > tables > that i created using Ignite SQL. When I am writing data ( lot of data ) in > these tables, I see these warnings in the logs and writes hang for some > time > and then resume. > > [2019-06-23 10:12:47,647][INFO > ][db-checkpoint-thread-#144][GridCacheDatabaseSharedManager] Checkpoint > started [checkpointId=d067e58d-d62d-4914-9ce8-531369e08c33, > startPtr=FileWALPointer [idx=214, fileOff=115119, len=2123305], > checkpointLockWait=0ms, checkpointLockHoldTime=1727ms, > walCpRecordFsyncDuration=2305ms, pages=304819, reason='too many dirty > pages'] > > Any pointers, please let me know ?? > > Thanx and Regards, > KR Kumar > > > > -- > Sent from: http://apache-ignite-users.70518.x6.nabble.com/ >
too many dirty pages
Hi - I have ignite persistence enabled cache that has about 100 cache tables that i created using Ignite SQL. When I am writing data ( lot of data ) in these tables, I see these warnings in the logs and writes hang for some time and then resume. [2019-06-23 10:12:47,647][INFO ][db-checkpoint-thread-#144][GridCacheDatabaseSharedManager] Checkpoint started [checkpointId=d067e58d-d62d-4914-9ce8-531369e08c33, startPtr=FileWALPointer [idx=214, fileOff=115119, len=2123305], checkpointLockWait=0ms, checkpointLockHoldTime=1727ms, walCpRecordFsyncDuration=2305ms, pages=304819, reason='too many dirty pages'] Any pointers, please let me know ?? Thanx and Regards, KR Kumar -- Sent from: http://apache-ignite-users.70518.x6.nabble.com/
