Re: How to replay a transaction log from the begining
ojas.dubey@...
Hi Boxuan,
Thanks. This indeed helped. Initially nothing happened (or at least it appeared that way) so I changed the start time to EPOCH and left the application running for a while and after sometime the callback was executed.
So I was wondering how the log processor uses the start time value to replay the log and why did it take a long time to replay the logs. Is there a way by which I can reduce the time by setting the correct UTC time to start time (as i dont want to use EPOCH everytime) so that the callback is executed immediately?
Also is there a difference in the values of Instant.now() used by ReadMarker vs the actual local time used by the applicatioon because the ReadMarker initialization logs showed a different time. e.g.
Regards,
Ojas
Thanks. This indeed helped. Initially nothing happened (or at least it appeared that way) so I changed the start time to EPOCH and left the application running for a while and after sometime the callback was executed.
So I was wondering how the log processor uses the start time value to replay the log and why did it take a long time to replay the logs. Is there a way by which I can reduce the time by setting the correct UTC time to start time (as i dont want to use EPOCH everytime) so that the callback is executed immediately?
Also is there a difference in the values of Instant.now() used by ReadMarker vs the actual local time used by the applicatioon because the ReadMarker initialization logs showed a different time. e.g.
2021-06-30T13:21:32.003+05:30 INFO |InternalEventLogger|||||||o.j.diskstorage.log.kcvs.KCVSLog|Loaded identified ReadMarker start time 2021-06-30T04:00:00Z into org.janusgraph.diskstorage.log.kcvs.KCVSLog$MessagePuller@4051e47b
2021-06-30T13:21:32.008+05:30 INFO |InternalEventLogger|||||||o.j.diskstorage.log.kcvs.KCVSLog|Loaded identified ReadMarker start time 2021-06-30T04:00:00Z into org.janusgraph.diskstorage.log.kcvs.KCVSLog$MessagePuller@6a332fb7
2021-06-30T13:21:32.013+05:30 INFO |InternalEventLogger|||||||o.j.diskstorage.log.kcvs.KCVSLog|Loaded identified ReadMarker start time 2021-06-30T04:00:00Z into org.janusgraph.diskstorage.log.kcvs.KCVSLog$MessagePuller@1f2cf847
2021-06-30T13:21:32.015+05:30 INFO |InternalEventLogger|||||||o.j.diskstorage.log.kcvs.KCVSLog|Loaded identified ReadMarker start time 2021-06-30T04:00:00Z into org.janusgraph.diskstorage.log.kcvs.KCVSLog$MessagePuller@3cc2c61b
while the application log shows another time
2021-06-30T13:26:15.794+05:30 INFO |InternalEventLogger||c.a.o.s.b.s.i.Test|Started tx standardjanusgraphtx[0x39c4068c] for requestId 5ba073c8-68c2-4356-8097-2e62ef56299a and batchId 9632dceb-7996-4464-91d8-1b157fc8ca00
while the application log shows another time
2021-06-30T13:26:15.794+05:30 INFO |InternalEventLogger||c.a.o.s.b.s.i.Test|Started tx standardjanusgraphtx[0x39c4068c] for requestId 5ba073c8-68c2-4356-8097-2e62ef56299a and batchId 9632dceb-7996-4464-91d8-1b157fc8ca00
Regards,
Ojas