Michael Dürig created OAK-6634:
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Summary: Confusing log entries when memory requirements are not
met at start of OnRC
Key: OAK-6634
URL: https://issues.apache.org/jira/browse/OAK-6634
Project: Jackrabbit Oak
Issue Type: Improvement
Components: segment-tar
Reporter: Michael Dürig
Assignee: Michael Dürig
Fix For: 1.8, 1.7.7
When the memory requirements for running OnRC are not met before the estimation
phase the estimator will run nevertheless. The process will only be cancelled
at the beginning of the compaction phase. The entries in the log file reflect
this:
{code}
TarMK GC #1: canceling compaction because available memory level 306.4 MB
(306395472 bytes) is too low...
TarMK GC #1: estimation started
TarMK GC #1: estimation completed in 343.5 ms (343 ms). Estimation skipped
because of missing gc journal data (expected on first run)
TarMK GC #1: running full compaction
TarMK GC #1: compaction started ...
TarMK GC #1: unable to estimate number of nodes for compaction, missing gc
history.
TarMK GC #1: compaction cancelled: Not enough memory.
TarMK GC #1: cleaning up after failed compaction
{code}
However they can easily be (mis-)read as compaction being re-triggered after
having been cancelled and then being cancelled again.
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