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Posted to oak-issues@jackrabbit.apache.org by "Alex Parvulescu (JIRA)" <ji...@apache.org> on 2016/11/12 14:11:58 UTC
[jira] [Updated] (OAK-5100) Provide source store external
references flag via command line if available
[ https://issues.apache.org/jira/browse/OAK-5100?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Alex Parvulescu updated OAK-5100:
---------------------------------
Description:
Currently the upgrade code tries to figure out if the source store uses an external datastore by running a {{SegmentTracker.collectBlobReferences}} process. This has performance problems when the given store doesn't use a datastore, so the above method will traverse the entire store without any callback (think 150GB store).
The relatively simple fix is to provide this flag via the command line for the upgrade bits, still using the existing method as a fallback if nothing is provided.
{noformat}
at org.apache.jackrabbit.oak.plugins.segment.Segment.<init>(Segment.java:224)
at org.apache.jackrabbit.oak.plugins.segment.Segment.<init>(Segment.java:204)
at org.apache.jackrabbit.oak.plugins.segment.file.FileStore.readSegment(FileStore.java:1238)
at org.apache.jackrabbit.oak.plugins.segment.SegmentTracker.readSegment(SegmentTracker.java:242)
at org.apache.jackrabbit.oak.plugins.segment.SegmentId.getSegment(SegmentId.java:149)
- locked <0x000000054e8e25c8> (a org.apache.jackrabbit.oak.plugins.segment.SegmentId)
at org.apache.jackrabbit.oak.plugins.segment.SegmentTracker.collectBlobReferences(SegmentTracker.java:307)
at org.apache.jackrabbit.oak.upgrade.cli.node.SegmentFactory.hasExternalBlobReferences(SegmentFactory.java:120)
at org.apache.jackrabbit.oak.upgrade.cli.node.StoreFactory.hasExternalBlobReferences(StoreFactory.java:67)
at org.apache.jackrabbit.oak.upgrade.cli.parser.StoreArguments.srcUsesEmbeddedDatastore(StoreArguments.java:109)
at org.apache.jackrabbit.oak.upgrade.cli.OakUpgrade.migrate(OakUpgrade.java:64)
at org.apache.jackrabbit.oak.upgrade.cli.OakUpgrade.main(OakUpgrade.java:48)
{noformat}
was:
Currently the upgrade code tries to figure out if the source store uses an external datastore by running a {{SegmentTracker.collectBlobReferences}} process. This has performance problems when the given store doesn't use a datastore, so the above method will traverse the entire store without any callback (think 150GB store).
The relatively simple fix is to provide this flag via the command line for the upgrade bits, still using the existing method as a fallback if nothing is provided.
> Provide source store external references flag via command line if available
> ---------------------------------------------------------------------------
>
> Key: OAK-5100
> URL: https://issues.apache.org/jira/browse/OAK-5100
> Project: Jackrabbit Oak
> Issue Type: Improvement
> Components: upgrade
> Reporter: Alex Parvulescu
>
> Currently the upgrade code tries to figure out if the source store uses an external datastore by running a {{SegmentTracker.collectBlobReferences}} process. This has performance problems when the given store doesn't use a datastore, so the above method will traverse the entire store without any callback (think 150GB store).
> The relatively simple fix is to provide this flag via the command line for the upgrade bits, still using the existing method as a fallback if nothing is provided.
> {noformat}
> at org.apache.jackrabbit.oak.plugins.segment.Segment.<init>(Segment.java:224)
> at org.apache.jackrabbit.oak.plugins.segment.Segment.<init>(Segment.java:204)
> at org.apache.jackrabbit.oak.plugins.segment.file.FileStore.readSegment(FileStore.java:1238)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentTracker.readSegment(SegmentTracker.java:242)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentId.getSegment(SegmentId.java:149)
> - locked <0x000000054e8e25c8> (a org.apache.jackrabbit.oak.plugins.segment.SegmentId)
> at org.apache.jackrabbit.oak.plugins.segment.SegmentTracker.collectBlobReferences(SegmentTracker.java:307)
> at org.apache.jackrabbit.oak.upgrade.cli.node.SegmentFactory.hasExternalBlobReferences(SegmentFactory.java:120)
> at org.apache.jackrabbit.oak.upgrade.cli.node.StoreFactory.hasExternalBlobReferences(StoreFactory.java:67)
> at org.apache.jackrabbit.oak.upgrade.cli.parser.StoreArguments.srcUsesEmbeddedDatastore(StoreArguments.java:109)
> at org.apache.jackrabbit.oak.upgrade.cli.OakUpgrade.migrate(OakUpgrade.java:64)
> at org.apache.jackrabbit.oak.upgrade.cli.OakUpgrade.main(OakUpgrade.java:48)
> {noformat}
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