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https://issues.apache.org/jira/browse/OAK-4260?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15313889#comment-15313889
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Alex Parvulescu edited comment on OAK-4260 at 6/3/16 9:35 AM:
--------------------------------------------------------------
another discussion point. what happens with external binaries when the
filedatastore is not present?
We discussed this as a part of OAK-4279 in the context of offline compaction as
it should work without having the external datastore attached, but what about
upgrades?
I'm trying one now and it fails because the filedatastore is not there [0], but
I think it should gracefully handle this, maybe it already does?
For reference the {{SegmentBlob.getReference}} fails, so there's no easy way of
identifying if a {{SegmentBlob}} is external or not.
[~tomek.rekawek], [~mduerig] thoughts?
[edit] just realized this is the 'old' segmentmk blob
{{org.apache.jackrabbit.oak.plugins.segment.SegmentBlob}}, ouch.
[0]
{code}
Exception in thread "main" java.lang.RuntimeException:
javax.jcr.RepositoryException: Failed to copy content
at com.google.common.io.Closer.rethrow(Closer.java:149)
at
org.apache.jackrabbit.oak.upgrade.cli.OakUpgrade.migrate(OakUpgrade.java:58)
at
org.apache.jackrabbit.oak.upgrade.cli.OakUpgrade.main(OakUpgrade.java:42)
Caused by: javax.jcr.RepositoryException: Failed to copy content
at
org.apache.jackrabbit.oak.upgrade.RepositorySidegrade.copy(RepositorySidegrade.java:254)
at
org.apache.jackrabbit.oak.upgrade.RepositorySidegrade.copy(RepositorySidegrade.java:214)
at
org.apache.jackrabbit.oak.upgrade.cli.OakUpgrade.sidegrade(OakUpgrade.java:69)
at
org.apache.jackrabbit.oak.upgrade.cli.OakUpgrade.migrate(OakUpgrade.java:55)
... 1 more
Caused by: java.lang.IllegalStateException: Attempt to read external blob with
blobId [6c7f61ed907f481c4417c1a31a406707a1f552f1#6720] without specifying
BlobStore
at
org.apache.jackrabbit.oak.plugins.segment.SegmentBlob.getReference(SegmentBlob.java:129)
at
org.apache.jackrabbit.oak.segment.SegmentWriter$SegmentWriteOperation.writeBlob(SegmentWriter.java:646)
at
org.apache.jackrabbit.oak.segment.SegmentWriter$SegmentWriteOperation.writeProperty(SegmentWriter.java:763)
at
org.apache.jackrabbit.oak.segment.SegmentWriter$SegmentWriteOperation.writeProperty(SegmentWriter.java:750)
at
org.apache.jackrabbit.oak.segment.SegmentWriter$SegmentWriteOperation.writeNodeUncached(SegmentWriter.java:957)
at
org.apache.jackrabbit.oak.segment.SegmentWriter$SegmentWriteOperation.writeNode(SegmentWriter.java:883)
{code}
was (Author: alex.parvulescu):
another discussion point. what happens with external binaries when the
filedatastore is not present?
We discussed this as a part of OAK-4279 in the context of offline compaction as
it should work without having the external datastore attached, but what about
upgrades?
I'm trying one now and it fails because the filedatastore is not there [0], but
I think it should gracefully handle this, maybe it already does?
For reference the {{SegmentBlob.getReference}} fails, so there's no easy way of
identifying if a {{SegmentBlob}} is external or not.
[~tomek.rekawek], [~mduerig] thoughts?
[0]
{code}
Exception in thread "main" java.lang.RuntimeException:
javax.jcr.RepositoryException: Failed to copy content
at com.google.common.io.Closer.rethrow(Closer.java:149)
at
org.apache.jackrabbit.oak.upgrade.cli.OakUpgrade.migrate(OakUpgrade.java:58)
at
org.apache.jackrabbit.oak.upgrade.cli.OakUpgrade.main(OakUpgrade.java:42)
Caused by: javax.jcr.RepositoryException: Failed to copy content
at
org.apache.jackrabbit.oak.upgrade.RepositorySidegrade.copy(RepositorySidegrade.java:254)
at
org.apache.jackrabbit.oak.upgrade.RepositorySidegrade.copy(RepositorySidegrade.java:214)
at
org.apache.jackrabbit.oak.upgrade.cli.OakUpgrade.sidegrade(OakUpgrade.java:69)
at
org.apache.jackrabbit.oak.upgrade.cli.OakUpgrade.migrate(OakUpgrade.java:55)
... 1 more
Caused by: java.lang.IllegalStateException: Attempt to read external blob with
blobId [6c7f61ed907f481c4417c1a31a406707a1f552f1#6720] without specifying
BlobStore
at
org.apache.jackrabbit.oak.plugins.segment.SegmentBlob.getReference(SegmentBlob.java:129)
at
org.apache.jackrabbit.oak.segment.SegmentWriter$SegmentWriteOperation.writeBlob(SegmentWriter.java:646)
at
org.apache.jackrabbit.oak.segment.SegmentWriter$SegmentWriteOperation.writeProperty(SegmentWriter.java:763)
at
org.apache.jackrabbit.oak.segment.SegmentWriter$SegmentWriteOperation.writeProperty(SegmentWriter.java:750)
at
org.apache.jackrabbit.oak.segment.SegmentWriter$SegmentWriteOperation.writeNodeUncached(SegmentWriter.java:957)
at
org.apache.jackrabbit.oak.segment.SegmentWriter$SegmentWriteOperation.writeNode(SegmentWriter.java:883)
{code}
> Define and implement migration from oak-segment to oak-segment-tar
> ------------------------------------------------------------------
>
> Key: OAK-4260
> URL: https://issues.apache.org/jira/browse/OAK-4260
> Project: Jackrabbit Oak
> Issue Type: Task
> Components: segment-tar, segmentmk, upgrade
> Reporter: Michael Dürig
> Assignee: Tomek Rękawek
> Labels: migration
> Fix For: 1.6
>
>
> We need to come up with a plan, implementation and documentation for how we
> deal with migrating from {{oak-segment}} to {{oak-segment-next}}.
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