rsync failure left with "[rsync] <defunct>" zombie processes

[fachen2015]

Hi I use rsync4j-core 3.2.3-7 (processoutput4j 0.0.7) in my project, but encountered this issue. whenever rsync failed (error 11), it would leave a zombie process not properly cleaned up. I double checked the output/err stream processor and could not find any issues there.

Any thoughts on this?
Thanks

[fracpete]

I haven't encountered an error code 11 before (Error in file I/O - full list of exit codes).

According to this blog post, an error code 11 can often be caused by a full disk:
https://bobcares.com/blog/rsync-error-code-11/

[fachen2015]

it's indeed full-disk. this is for a remote fs where striping is used, so a back-off retry would succeed later. However the initial failure would leave a zombie process not properly cleaned up. oneline resources all mention that zombie was caused by not draining out/err stream from the child process, but I do provide the processor for both streams, so wonder if any potential issues in the lib itself.

[fracpete]

You could try upgrading processoutput4j, as I made a small change today to account for flushing stdout/stderr of a failed process. You may have to upgrade your rsync4j version to the latest one, though.

[fracpete]

due to no further feedback, assuming to be fixed (f2613d5)