Francesco Mari created OAK-5044:
-----------------------------------
Summary: The background flush operation might flush a closed store
Key: OAK-5044
URL: https://issues.apache.org/jira/browse/OAK-5044
Project: Jackrabbit Oak
Issue Type: Bug
Components: segment-tar
Reporter: Francesco Mari
Assignee: Francesco Mari
Fix For: 1.6
The background flush operation might invoke flush after the TAR writer (and the
store in general) is either closed or in the process of being closed. This is
an example execution.
{noformat}
27.10.2016 23:42:32.533 WARN o.a.j.o.s.f.Scheduler: The scheduler FileStore
background tasks takes too long to shutdown
27.10.2016 23:43:22.574 WARN o.a.j.o.s.f.FileStore: Failed to flush the TarMK
at crx-quickstart/repository/segmentstore
java.io.IOException: Stream Closed
at java.io.RandomAccessFile.writeBytes0(Native Method) ~[na:1.7.0_75]
at java.io.RandomAccessFile.writeBytes(RandomAccessFile.java:520)
~[na:1.7.0_75]
at java.io.RandomAccessFile.writeBytes(RandomAccessFile.java:1123)
~[na:1.7.0_75]
at
org.apache.jackrabbit.oak.segment.file.TarRevisions.flush(TarRevisions.java:209)
~[crx2oak-1.5.6-all-in-one.jar:1.5.6]
at
org.apache.jackrabbit.oak.segment.file.FileStore.flush(FileStore.java:365)
~[crx2oak-1.5.6-all-in-one.jar:1.5.6]
at
org.apache.jackrabbit.oak.segment.file.FileStore$2.run(FileStore.java:207)
~[crx2oak-1.5.6-all-in-one.jar:1.5.6]
at
org.apache.jackrabbit.oak.segment.file.SafeRunnable.run(SafeRunnable.java:67)
[crx2oak-1.5.6-all-in-one.jar:1.5.6]
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
[na:1.7.0_75]
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:304)
[na:1.7.0_75]
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:178)
[na:1.7.0_75]
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
[na:1.7.0_75]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
[na:1.7.0_75]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
[na:1.7.0_75]
at java.lang.Thread.run(Thread.java:745) [na:1.7.0_75]
27.10.2016 23:43:23.988 INFO o.a.j.o.s.f.FileStore: TarMK closed:
crx-quickstart/repository/segmentstore
27.10.2016 23:43:24.262 INFO o.a.j.o.p.s.f.FileStore: TarMK closed:
crx-quickstart/repository-old/segmentstore
{noformat}
Flushing the store should not executing any significant operation on the
underlying file system objects when the store is closed, even if it's not
possible to shut down the scheduler in a timely fashion.
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