[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16721178#comment-16721178
]
Hudson commented on HBASE-20723:
Results for branch branch-1.3
[build #576 on
builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/branch-1.3/576/]:
(x) *{color:red}-1 overall{color}*
details (if available):
(/) {color:green}+1 general checks{color}
-- For more information [see general
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-1.3/576//General_Nightly_Build_Report/]
(/) {color:green}+1 jdk7 checks{color}
-- For more information [see jdk7
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-1.3/576//JDK7_Nightly_Build_Report/]
(x) {color:red}-1 jdk8 hadoop2 checks{color}
-- For more information [see jdk8 (hadoop2)
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-1.3/576//JDK8_Nightly_Build_Report_(Hadoop2)/]
(/) {color:green}+1 source release artifact{color}
-- See build output for details.
> Custom hbase.wal.dir results in data loss because we write recovered edits
> into a different place than where the recovering region server looks for them
>
>
> Key: HBASE-20723
> URL: https://issues.apache.org/jira/browse/HBASE-20723
> Project: HBase
> Issue Type: Bug
> Components: Recovery, wal
>Affects Versions: 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 2.0.0
>Reporter: Rohan Pednekar
>Assignee: Ted Yu
>Priority: Critical
> Fix For: 2.1.0, 1.5.0, 1.3.3, 1.4.6
>
> Attachments: 20723.branch-1.txt, 20723.branch-2.txt, 20723.v1.txt,
> 20723.v10.txt, 20723.v2.txt, 20723.v3.txt, 20723.v4.txt, 20723.v5.txt,
> 20723.v5.txt, 20723.v6.txt, 20723.v7.txt, 20723.v8.txt, 20723.v9.txt, logs.zip
>
>
> Description:
> When custom hbase.wal.dir is configured the recovery system uses it in place
> of the HBase root dir and thus constructs an incorrect path for recovered
> edits when splitting WALs. This causes the recovery code in Region Servers to
> believe there are no recovered edits to replay, which causes a loss of writes
> that had not flushed prior to loss of a server.
>
> Reproduction:
> This is an Azure HDInsight HBase cluster with HDP 2.6. and HBase
> 1.1.2.2.6.3.2-14
> By default the underlying data is going to wasb://x@y/hbase
> I tried to move WAL folders to HDFS, which is the SSD mounted on each VM at
> /mnt.
> hbase.wal.dir= hdfs://mycluster/walontest
> hbase.wal.dir.perms=700
> hbase.rootdir.perms=700
> hbase.rootdir=
> wasb://XYZ[@hbaseperf.core.net|mailto:duohbase5ds...@duohbaseperf.blob.core.windows.net]/hbase
> Procedure to reproduce this issue:
> 1. create a table in hbase shell
> 2. insert a row in hbase shell
> 3. reboot the VM which hosts that region
> 4. scan the table in hbase shell and it is empty
> Looking at the region server logs:
> {code:java}
> 2018-06-12 22:08:40,455 INFO [RS_LOG_REPLAY_OPS-wn2-duohba:16020-0-Writer-1]
> wal.WALSplitter: This region's directory doesn't exist:
> hdfs://mycluster/walontest/data/default/tb1/b7fd7db5694eb71190955292b3ff7648.
> It is very likely that it was already split so it's safe to discard those
> edits.
> {code}
> The log split/replay ignored actual WAL due to WALSplitter is looking for the
> region directory in the hbase.wal.dir we specified rather than the
> hbase.rootdir.
> Looking at the source code,
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java]
> it uses the rootDir, which is walDir, as the tableDir root path.
> So if we use HBASE-17437, waldir and hbase rootdir are in different path or
> even in different filesystem, then the #5 uses walDir as tableDir is
> apparently wrong.
> CC: [~zyork], [~yuzhih...@gmail.com] Attached the logs for quick review.
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[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16720787#comment-16720787
]
Hudson commented on HBASE-20723:
SUCCESS: Integrated in Jenkins build HBase-1.3-IT #509 (See
[https://builds.apache.org/job/HBase-1.3-IT/509/])
HBASE-20723 Custom hbase.wal.dir results in data loss because we write
(apurtell: rev 2702f23a4addaa459d6f221c0008be0c556f672d)
* (edit)
hbase-server/src/main/java/org/apache/hadoop/hbase/wal/DefaultWALProvider.java
* (edit)
hbase-server/src/test/java/org/apache/hadoop/hbase/wal/TestWALSplit.java
* (edit)
hbase-server/src/test/java/org/apache/hadoop/hbase/wal/TestWALFactory.java
* (edit) hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java
* (edit)
hbase-server/src/test/java/org/apache/hadoop/hbase/regionserver/wal/TestWALReplay.java
> Custom hbase.wal.dir results in data loss because we write recovered edits
> into a different place than where the recovering region server looks for them
>
>
> Key: HBASE-20723
> URL: https://issues.apache.org/jira/browse/HBASE-20723
> Project: HBase
> Issue Type: Bug
> Components: Recovery, wal
>Affects Versions: 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 2.0.0
>Reporter: Rohan Pednekar
>Assignee: Ted Yu
>Priority: Critical
> Fix For: 2.1.0, 1.5.0, 1.3.3, 1.4.6
>
> Attachments: 20723.branch-1.txt, 20723.branch-2.txt, 20723.v1.txt,
> 20723.v10.txt, 20723.v2.txt, 20723.v3.txt, 20723.v4.txt, 20723.v5.txt,
> 20723.v5.txt, 20723.v6.txt, 20723.v7.txt, 20723.v8.txt, 20723.v9.txt, logs.zip
>
>
> Description:
> When custom hbase.wal.dir is configured the recovery system uses it in place
> of the HBase root dir and thus constructs an incorrect path for recovered
> edits when splitting WALs. This causes the recovery code in Region Servers to
> believe there are no recovered edits to replay, which causes a loss of writes
> that had not flushed prior to loss of a server.
>
> Reproduction:
> This is an Azure HDInsight HBase cluster with HDP 2.6. and HBase
> 1.1.2.2.6.3.2-14
> By default the underlying data is going to wasb://x@y/hbase
> I tried to move WAL folders to HDFS, which is the SSD mounted on each VM at
> /mnt.
> hbase.wal.dir= hdfs://mycluster/walontest
> hbase.wal.dir.perms=700
> hbase.rootdir.perms=700
> hbase.rootdir=
> wasb://XYZ[@hbaseperf.core.net|mailto:duohbase5ds...@duohbaseperf.blob.core.windows.net]/hbase
> Procedure to reproduce this issue:
> 1. create a table in hbase shell
> 2. insert a row in hbase shell
> 3. reboot the VM which hosts that region
> 4. scan the table in hbase shell and it is empty
> Looking at the region server logs:
> {code:java}
> 2018-06-12 22:08:40,455 INFO [RS_LOG_REPLAY_OPS-wn2-duohba:16020-0-Writer-1]
> wal.WALSplitter: This region's directory doesn't exist:
> hdfs://mycluster/walontest/data/default/tb1/b7fd7db5694eb71190955292b3ff7648.
> It is very likely that it was already split so it's safe to discard those
> edits.
> {code}
> The log split/replay ignored actual WAL due to WALSplitter is looking for the
> region directory in the hbase.wal.dir we specified rather than the
> hbase.rootdir.
> Looking at the source code,
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java]
> it uses the rootDir, which is walDir, as the tableDir root path.
> So if we use HBASE-17437, waldir and hbase rootdir are in different path or
> even in different filesystem, then the #5 uses walDir as tableDir is
> apparently wrong.
> CC: [~zyork], [~yuzhih...@gmail.com] Attached the logs for quick review.
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[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16584434#comment-16584434
]
Zach York commented on HBASE-20723:
---
[~jerrychabot] that commit doesn't appear in Apache HBase 1.3.1 so no need to
fix it here.
Since you are using EMR, that particular patch was present in EMR's version of
HBase 1.3.1. The bug has been fixed in EMR 5.16.0 and onward. Please reach out
to me if you have any questions. Jira shouldn't be used for vendor specific
issues.
> Custom hbase.wal.dir results in data loss because we write recovered edits
> into a different place than where the recovering region server looks for them
>
>
> Key: HBASE-20723
> URL: https://issues.apache.org/jira/browse/HBASE-20723
> Project: HBase
> Issue Type: Bug
> Components: Recovery, wal
>Affects Versions: 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 2.0.0
>Reporter: Rohan Pednekar
>Assignee: Ted Yu
>Priority: Critical
> Fix For: 2.1.0, 1.5.0, 1.4.6
>
> Attachments: 20723.branch-1.txt, 20723.branch-2.txt, 20723.v1.txt,
> 20723.v10.txt, 20723.v2.txt, 20723.v3.txt, 20723.v4.txt, 20723.v5.txt,
> 20723.v5.txt, 20723.v6.txt, 20723.v7.txt, 20723.v8.txt, 20723.v9.txt, logs.zip
>
>
> Description:
> When custom hbase.wal.dir is configured the recovery system uses it in place
> of the HBase root dir and thus constructs an incorrect path for recovered
> edits when splitting WALs. This causes the recovery code in Region Servers to
> believe there are no recovered edits to replay, which causes a loss of writes
> that had not flushed prior to loss of a server.
>
> Reproduction:
> This is an Azure HDInsight HBase cluster with HDP 2.6. and HBase
> 1.1.2.2.6.3.2-14
> By default the underlying data is going to wasb://x@y/hbase
> I tried to move WAL folders to HDFS, which is the SSD mounted on each VM at
> /mnt.
> hbase.wal.dir= hdfs://mycluster/walontest
> hbase.wal.dir.perms=700
> hbase.rootdir.perms=700
> hbase.rootdir=
> wasb://XYZ[@hbaseperf.core.net|mailto:duohbase5ds...@duohbaseperf.blob.core.windows.net]/hbase
> Procedure to reproduce this issue:
> 1. create a table in hbase shell
> 2. insert a row in hbase shell
> 3. reboot the VM which hosts that region
> 4. scan the table in hbase shell and it is empty
> Looking at the region server logs:
> {code:java}
> 2018-06-12 22:08:40,455 INFO [RS_LOG_REPLAY_OPS-wn2-duohba:16020-0-Writer-1]
> wal.WALSplitter: This region's directory doesn't exist:
> hdfs://mycluster/walontest/data/default/tb1/b7fd7db5694eb71190955292b3ff7648.
> It is very likely that it was already split so it's safe to discard those
> edits.
> {code}
> The log split/replay ignored actual WAL due to WALSplitter is looking for the
> region directory in the hbase.wal.dir we specified rather than the
> hbase.rootdir.
> Looking at the source code,
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java]
> it uses the rootDir, which is walDir, as the tableDir root path.
> So if we use HBASE-17437, waldir and hbase rootdir are in different path or
> even in different filesystem, then the #5 uses walDir as tableDir is
> apparently wrong.
> CC: [~zyork], [~yuzhih...@gmail.com] Attached the logs for quick review.
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[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16583042#comment-16583042
]
Jerry Chabot commented on HBASE-20723:
--
BTW, we are using EMR 5.7 with EMRFS so hbase.rootdir and hbase.wal.dir are
different. The former points to S3. The latter to HDFS. This bug refers to
https://issues.apache.org/jira/browse/HBASE-17437 which is needed to allow
hbase.wal.dir to outside the root directory. Did I read that correctly? If so,
how could we specify different locations?
> Custom hbase.wal.dir results in data loss because we write recovered edits
> into a different place than where the recovering region server looks for them
>
>
> Key: HBASE-20723
> URL: https://issues.apache.org/jira/browse/HBASE-20723
> Project: HBase
> Issue Type: Bug
> Components: Recovery, wal
>Affects Versions: 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 2.0.0
>Reporter: Rohan Pednekar
>Assignee: Ted Yu
>Priority: Critical
> Fix For: 2.1.0, 1.5.0, 1.4.6
>
> Attachments: 20723.branch-1.txt, 20723.branch-2.txt, 20723.v1.txt,
> 20723.v10.txt, 20723.v2.txt, 20723.v3.txt, 20723.v4.txt, 20723.v5.txt,
> 20723.v5.txt, 20723.v6.txt, 20723.v7.txt, 20723.v8.txt, 20723.v9.txt, logs.zip
>
>
> Description:
> When custom hbase.wal.dir is configured the recovery system uses it in place
> of the HBase root dir and thus constructs an incorrect path for recovered
> edits when splitting WALs. This causes the recovery code in Region Servers to
> believe there are no recovered edits to replay, which causes a loss of writes
> that had not flushed prior to loss of a server.
>
> Reproduction:
> This is an Azure HDInsight HBase cluster with HDP 2.6. and HBase
> 1.1.2.2.6.3.2-14
> By default the underlying data is going to wasb://x@y/hbase
> I tried to move WAL folders to HDFS, which is the SSD mounted on each VM at
> /mnt.
> hbase.wal.dir= hdfs://mycluster/walontest
> hbase.wal.dir.perms=700
> hbase.rootdir.perms=700
> hbase.rootdir=
> wasb://XYZ[@hbaseperf.core.net|mailto:duohbase5ds...@duohbaseperf.blob.core.windows.net]/hbase
> Procedure to reproduce this issue:
> 1. create a table in hbase shell
> 2. insert a row in hbase shell
> 3. reboot the VM which hosts that region
> 4. scan the table in hbase shell and it is empty
> Looking at the region server logs:
> {code:java}
> 2018-06-12 22:08:40,455 INFO [RS_LOG_REPLAY_OPS-wn2-duohba:16020-0-Writer-1]
> wal.WALSplitter: This region's directory doesn't exist:
> hdfs://mycluster/walontest/data/default/tb1/b7fd7db5694eb71190955292b3ff7648.
> It is very likely that it was already split so it's safe to discard those
> edits.
> {code}
> The log split/replay ignored actual WAL due to WALSplitter is looking for the
> region directory in the hbase.wal.dir we specified rather than the
> hbase.rootdir.
> Looking at the source code,
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java]
> it uses the rootDir, which is walDir, as the tableDir root path.
> So if we use HBASE-17437, waldir and hbase rootdir are in different path or
> even in different filesystem, then the #5 uses walDir as tableDir is
> apparently wrong.
> CC: [~zyork], [~yuzhih...@gmail.com] Attached the logs for quick review.
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[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16583000#comment-16583000
]
Jerry Chabot commented on HBASE-20723:
--
I had someone confirm looking at the 1.3.1 branch. "If you look at
https://github.com/apache/hbase/blob/rel/1.3.1/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java
you can see the "protected final Path rootDir;" data member. This was renamed
to "walDir" in the fix patch for that bug, so it does look like 1.3.1 has the
unpatched code"
We are currently trying to verify use the How to Reproduce steps described
above.
> Custom hbase.wal.dir results in data loss because we write recovered edits
> into a different place than where the recovering region server looks for them
>
>
> Key: HBASE-20723
> URL: https://issues.apache.org/jira/browse/HBASE-20723
> Project: HBase
> Issue Type: Bug
> Components: Recovery, wal
>Affects Versions: 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 2.0.0
>Reporter: Rohan Pednekar
>Assignee: Ted Yu
>Priority: Critical
> Fix For: 2.1.0, 1.5.0, 1.4.6
>
> Attachments: 20723.branch-1.txt, 20723.branch-2.txt, 20723.v1.txt,
> 20723.v10.txt, 20723.v2.txt, 20723.v3.txt, 20723.v4.txt, 20723.v5.txt,
> 20723.v5.txt, 20723.v6.txt, 20723.v7.txt, 20723.v8.txt, 20723.v9.txt, logs.zip
>
>
> Description:
> When custom hbase.wal.dir is configured the recovery system uses it in place
> of the HBase root dir and thus constructs an incorrect path for recovered
> edits when splitting WALs. This causes the recovery code in Region Servers to
> believe there are no recovered edits to replay, which causes a loss of writes
> that had not flushed prior to loss of a server.
>
> Reproduction:
> This is an Azure HDInsight HBase cluster with HDP 2.6. and HBase
> 1.1.2.2.6.3.2-14
> By default the underlying data is going to wasb://x@y/hbase
> I tried to move WAL folders to HDFS, which is the SSD mounted on each VM at
> /mnt.
> hbase.wal.dir= hdfs://mycluster/walontest
> hbase.wal.dir.perms=700
> hbase.rootdir.perms=700
> hbase.rootdir=
> wasb://XYZ[@hbaseperf.core.net|mailto:duohbase5ds...@duohbaseperf.blob.core.windows.net]/hbase
> Procedure to reproduce this issue:
> 1. create a table in hbase shell
> 2. insert a row in hbase shell
> 3. reboot the VM which hosts that region
> 4. scan the table in hbase shell and it is empty
> Looking at the region server logs:
> {code:java}
> 2018-06-12 22:08:40,455 INFO [RS_LOG_REPLAY_OPS-wn2-duohba:16020-0-Writer-1]
> wal.WALSplitter: This region's directory doesn't exist:
> hdfs://mycluster/walontest/data/default/tb1/b7fd7db5694eb71190955292b3ff7648.
> It is very likely that it was already split so it's safe to discard those
> edits.
> {code}
> The log split/replay ignored actual WAL due to WALSplitter is looking for the
> region directory in the hbase.wal.dir we specified rather than the
> hbase.rootdir.
> Looking at the source code,
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java]
> it uses the rootDir, which is walDir, as the tableDir root path.
> So if we use HBASE-17437, waldir and hbase rootdir are in different path or
> even in different filesystem, then the #5 uses walDir as tableDir is
> apparently wrong.
> CC: [~zyork], [~yuzhih...@gmail.com] Attached the logs for quick review.
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[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16582987#comment-16582987
]
Sean Busbey commented on HBASE-20723:
-
are you sure? HBASE-17437 is marked as 1.4.0+?
> Custom hbase.wal.dir results in data loss because we write recovered edits
> into a different place than where the recovering region server looks for them
>
>
> Key: HBASE-20723
> URL: https://issues.apache.org/jira/browse/HBASE-20723
> Project: HBase
> Issue Type: Bug
> Components: Recovery, wal
>Affects Versions: 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 2.0.0
>Reporter: Rohan Pednekar
>Assignee: Ted Yu
>Priority: Critical
> Fix For: 2.1.0, 1.5.0, 1.4.6
>
> Attachments: 20723.branch-1.txt, 20723.branch-2.txt, 20723.v1.txt,
> 20723.v10.txt, 20723.v2.txt, 20723.v3.txt, 20723.v4.txt, 20723.v5.txt,
> 20723.v5.txt, 20723.v6.txt, 20723.v7.txt, 20723.v8.txt, 20723.v9.txt, logs.zip
>
>
> Description:
> When custom hbase.wal.dir is configured the recovery system uses it in place
> of the HBase root dir and thus constructs an incorrect path for recovered
> edits when splitting WALs. This causes the recovery code in Region Servers to
> believe there are no recovered edits to replay, which causes a loss of writes
> that had not flushed prior to loss of a server.
>
> Reproduction:
> This is an Azure HDInsight HBase cluster with HDP 2.6. and HBase
> 1.1.2.2.6.3.2-14
> By default the underlying data is going to wasb://x@y/hbase
> I tried to move WAL folders to HDFS, which is the SSD mounted on each VM at
> /mnt.
> hbase.wal.dir= hdfs://mycluster/walontest
> hbase.wal.dir.perms=700
> hbase.rootdir.perms=700
> hbase.rootdir=
> wasb://XYZ[@hbaseperf.core.net|mailto:duohbase5ds...@duohbaseperf.blob.core.windows.net]/hbase
> Procedure to reproduce this issue:
> 1. create a table in hbase shell
> 2. insert a row in hbase shell
> 3. reboot the VM which hosts that region
> 4. scan the table in hbase shell and it is empty
> Looking at the region server logs:
> {code:java}
> 2018-06-12 22:08:40,455 INFO [RS_LOG_REPLAY_OPS-wn2-duohba:16020-0-Writer-1]
> wal.WALSplitter: This region's directory doesn't exist:
> hdfs://mycluster/walontest/data/default/tb1/b7fd7db5694eb71190955292b3ff7648.
> It is very likely that it was already split so it's safe to discard those
> edits.
> {code}
> The log split/replay ignored actual WAL due to WALSplitter is looking for the
> region directory in the hbase.wal.dir we specified rather than the
> hbase.rootdir.
> Looking at the source code,
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java]
> it uses the rootDir, which is walDir, as the tableDir root path.
> So if we use HBASE-17437, waldir and hbase rootdir are in different path or
> even in different filesystem, then the #5 uses walDir as tableDir is
> apparently wrong.
> CC: [~zyork], [~yuzhih...@gmail.com] Attached the logs for quick review.
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[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16582974#comment-16582974
]
Jerry Chabot commented on HBASE-20723:
--
This also appears to be a problem in HBase 1.3.1. Does anyone know if there is
a patch available that can be applied to 1.3.1?
> Custom hbase.wal.dir results in data loss because we write recovered edits
> into a different place than where the recovering region server looks for them
>
>
> Key: HBASE-20723
> URL: https://issues.apache.org/jira/browse/HBASE-20723
> Project: HBase
> Issue Type: Bug
> Components: Recovery, wal
>Affects Versions: 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 2.0.0
>Reporter: Rohan Pednekar
>Assignee: Ted Yu
>Priority: Critical
> Fix For: 2.1.0, 1.5.0, 1.4.6
>
> Attachments: 20723.branch-1.txt, 20723.branch-2.txt, 20723.v1.txt,
> 20723.v10.txt, 20723.v2.txt, 20723.v3.txt, 20723.v4.txt, 20723.v5.txt,
> 20723.v5.txt, 20723.v6.txt, 20723.v7.txt, 20723.v8.txt, 20723.v9.txt, logs.zip
>
>
> Description:
> When custom hbase.wal.dir is configured the recovery system uses it in place
> of the HBase root dir and thus constructs an incorrect path for recovered
> edits when splitting WALs. This causes the recovery code in Region Servers to
> believe there are no recovered edits to replay, which causes a loss of writes
> that had not flushed prior to loss of a server.
>
> Reproduction:
> This is an Azure HDInsight HBase cluster with HDP 2.6. and HBase
> 1.1.2.2.6.3.2-14
> By default the underlying data is going to wasb://x@y/hbase
> I tried to move WAL folders to HDFS, which is the SSD mounted on each VM at
> /mnt.
> hbase.wal.dir= hdfs://mycluster/walontest
> hbase.wal.dir.perms=700
> hbase.rootdir.perms=700
> hbase.rootdir=
> wasb://XYZ[@hbaseperf.core.net|mailto:duohbase5ds...@duohbaseperf.blob.core.windows.net]/hbase
> Procedure to reproduce this issue:
> 1. create a table in hbase shell
> 2. insert a row in hbase shell
> 3. reboot the VM which hosts that region
> 4. scan the table in hbase shell and it is empty
> Looking at the region server logs:
> {code:java}
> 2018-06-12 22:08:40,455 INFO [RS_LOG_REPLAY_OPS-wn2-duohba:16020-0-Writer-1]
> wal.WALSplitter: This region's directory doesn't exist:
> hdfs://mycluster/walontest/data/default/tb1/b7fd7db5694eb71190955292b3ff7648.
> It is very likely that it was already split so it's safe to discard those
> edits.
> {code}
> The log split/replay ignored actual WAL due to WALSplitter is looking for the
> region directory in the hbase.wal.dir we specified rather than the
> hbase.rootdir.
> Looking at the source code,
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java]
> it uses the rootDir, which is walDir, as the tableDir root path.
> So if we use HBASE-17437, waldir and hbase rootdir are in different path or
> even in different filesystem, then the #5 uses walDir as tableDir is
> apparently wrong.
> CC: [~zyork], [~yuzhih...@gmail.com] Attached the logs for quick review.
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[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16554772#comment-16554772
]
Sean Busbey commented on HBASE-20723:
-
[~yuzhih...@gmail.com] could you please add a release note?
> Custom hbase.wal.dir results in data loss because we write recovered edits
> into a different place than where the recovering region server looks for them
>
>
> Key: HBASE-20723
> URL: https://issues.apache.org/jira/browse/HBASE-20723
> Project: HBase
> Issue Type: Bug
> Components: Recovery, wal
>Affects Versions: 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 2.0.0
>Reporter: Rohan Pednekar
>Assignee: Ted Yu
>Priority: Critical
> Fix For: 2.1.0, 1.5.0, 1.4.6
>
> Attachments: 20723.branch-1.txt, 20723.branch-2.txt, 20723.v1.txt,
> 20723.v10.txt, 20723.v2.txt, 20723.v3.txt, 20723.v4.txt, 20723.v5.txt,
> 20723.v5.txt, 20723.v6.txt, 20723.v7.txt, 20723.v8.txt, 20723.v9.txt, logs.zip
>
>
> Description:
> When custom hbase.wal.dir is configured the recovery system uses it in place
> of the HBase root dir and thus constructs an incorrect path for recovered
> edits when splitting WALs. This causes the recovery code in Region Servers to
> believe there are no recovered edits to replay, which causes a loss of writes
> that had not flushed prior to loss of a server.
>
> Reproduction:
> This is an Azure HDInsight HBase cluster with HDP 2.6. and HBase
> 1.1.2.2.6.3.2-14
> By default the underlying data is going to wasb://x@y/hbase
> I tried to move WAL folders to HDFS, which is the SSD mounted on each VM at
> /mnt.
> hbase.wal.dir= hdfs://mycluster/walontest
> hbase.wal.dir.perms=700
> hbase.rootdir.perms=700
> hbase.rootdir=
> wasb://XYZ[@hbaseperf.core.net|mailto:duohbase5ds...@duohbaseperf.blob.core.windows.net]/hbase
> Procedure to reproduce this issue:
> 1. create a table in hbase shell
> 2. insert a row in hbase shell
> 3. reboot the VM which hosts that region
> 4. scan the table in hbase shell and it is empty
> Looking at the region server logs:
> {code:java}
> 2018-06-12 22:08:40,455 INFO [RS_LOG_REPLAY_OPS-wn2-duohba:16020-0-Writer-1]
> wal.WALSplitter: This region's directory doesn't exist:
> hdfs://mycluster/walontest/data/default/tb1/b7fd7db5694eb71190955292b3ff7648.
> It is very likely that it was already split so it's safe to discard those
> edits.
> {code}
> The log split/replay ignored actual WAL due to WALSplitter is looking for the
> region directory in the hbase.wal.dir we specified rather than the
> hbase.rootdir.
> Looking at the source code,
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java]
> it uses the rootDir, which is walDir, as the tableDir root path.
> So if we use HBASE-17437, waldir and hbase rootdir are in different path or
> even in different filesystem, then the #5 uses walDir as tableDir is
> apparently wrong.
> CC: [~zyork], [~yuzhih...@gmail.com] Attached the logs for quick review.
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[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16548609#comment-16548609
]
Ted Yu commented on HBASE-20723:
HBASE-17437 was not in 1.2 release.
> Custom hbase.wal.dir results in data loss because we write recovered edits
> into a different place than where the recovering region server looks for them
>
>
> Key: HBASE-20723
> URL: https://issues.apache.org/jira/browse/HBASE-20723
> Project: HBase
> Issue Type: Bug
> Components: Recovery, wal
>Affects Versions: 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 2.0.0
>Reporter: Rohan Pednekar
>Assignee: Ted Yu
>Priority: Critical
> Fix For: 2.1.0, 1.5.0, 1.4.6
>
> Attachments: 20723.branch-1.txt, 20723.branch-2.txt, 20723.v1.txt,
> 20723.v10.txt, 20723.v2.txt, 20723.v3.txt, 20723.v4.txt, 20723.v5.txt,
> 20723.v5.txt, 20723.v6.txt, 20723.v7.txt, 20723.v8.txt, 20723.v9.txt, logs.zip
>
>
> Description:
> When custom hbase.wal.dir is configured the recovery system uses it in place
> of the HBase root dir and thus constructs an incorrect path for recovered
> edits when splitting WALs. This causes the recovery code in Region Servers to
> believe there are no recovered edits to replay, which causes a loss of writes
> that had not flushed prior to loss of a server.
>
> Reproduction:
> This is an Azure HDInsight HBase cluster with HDP 2.6. and HBase
> 1.1.2.2.6.3.2-14
> By default the underlying data is going to wasb://x@y/hbase
> I tried to move WAL folders to HDFS, which is the SSD mounted on each VM at
> /mnt.
> hbase.wal.dir= hdfs://mycluster/walontest
> hbase.wal.dir.perms=700
> hbase.rootdir.perms=700
> hbase.rootdir=
> wasb://XYZ[@hbaseperf.core.net|mailto:duohbase5ds...@duohbaseperf.blob.core.windows.net]/hbase
> Procedure to reproduce this issue:
> 1. create a table in hbase shell
> 2. insert a row in hbase shell
> 3. reboot the VM which hosts that region
> 4. scan the table in hbase shell and it is empty
> Looking at the region server logs:
> {code:java}
> 2018-06-12 22:08:40,455 INFO [RS_LOG_REPLAY_OPS-wn2-duohba:16020-0-Writer-1]
> wal.WALSplitter: This region's directory doesn't exist:
> hdfs://mycluster/walontest/data/default/tb1/b7fd7db5694eb71190955292b3ff7648.
> It is very likely that it was already split so it's safe to discard those
> edits.
> {code}
> The log split/replay ignored actual WAL due to WALSplitter is looking for the
> region directory in the hbase.wal.dir we specified rather than the
> hbase.rootdir.
> Looking at the source code,
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java]
> it uses the rootDir, which is walDir, as the tableDir root path.
> So if we use HBASE-17437, waldir and hbase rootdir are in different path or
> even in different filesystem, then the #5 uses walDir as tableDir is
> apparently wrong.
> CC: [~zyork], [~yuzhih...@gmail.com] Attached the logs for quick review.
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[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16548560#comment-16548560
]
Sakthi commented on HBASE-20723:
[~yuzhih...@gmail.com] [~mdrob] [~busbey], I see that this hasn't been
backported to 1.2 yet? Any specific reasons?
> Custom hbase.wal.dir results in data loss because we write recovered edits
> into a different place than where the recovering region server looks for them
>
>
> Key: HBASE-20723
> URL: https://issues.apache.org/jira/browse/HBASE-20723
> Project: HBase
> Issue Type: Bug
> Components: Recovery, wal
>Affects Versions: 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 2.0.0
>Reporter: Rohan Pednekar
>Assignee: Ted Yu
>Priority: Critical
> Fix For: 2.1.0, 1.5.0, 1.4.6
>
> Attachments: 20723.branch-1.txt, 20723.branch-2.txt, 20723.v1.txt,
> 20723.v10.txt, 20723.v2.txt, 20723.v3.txt, 20723.v4.txt, 20723.v5.txt,
> 20723.v5.txt, 20723.v6.txt, 20723.v7.txt, 20723.v8.txt, 20723.v9.txt, logs.zip
>
>
> Description:
> When custom hbase.wal.dir is configured the recovery system uses it in place
> of the HBase root dir and thus constructs an incorrect path for recovered
> edits when splitting WALs. This causes the recovery code in Region Servers to
> believe there are no recovered edits to replay, which causes a loss of writes
> that had not flushed prior to loss of a server.
>
> Reproduction:
> This is an Azure HDInsight HBase cluster with HDP 2.6. and HBase
> 1.1.2.2.6.3.2-14
> By default the underlying data is going to wasb://x@y/hbase
> I tried to move WAL folders to HDFS, which is the SSD mounted on each VM at
> /mnt.
> hbase.wal.dir= hdfs://mycluster/walontest
> hbase.wal.dir.perms=700
> hbase.rootdir.perms=700
> hbase.rootdir=
> wasb://XYZ[@hbaseperf.core.net|mailto:duohbase5ds...@duohbaseperf.blob.core.windows.net]/hbase
> Procedure to reproduce this issue:
> 1. create a table in hbase shell
> 2. insert a row in hbase shell
> 3. reboot the VM which hosts that region
> 4. scan the table in hbase shell and it is empty
> Looking at the region server logs:
> {code:java}
> 2018-06-12 22:08:40,455 INFO [RS_LOG_REPLAY_OPS-wn2-duohba:16020-0-Writer-1]
> wal.WALSplitter: This region's directory doesn't exist:
> hdfs://mycluster/walontest/data/default/tb1/b7fd7db5694eb71190955292b3ff7648.
> It is very likely that it was already split so it's safe to discard those
> edits.
> {code}
> The log split/replay ignored actual WAL due to WALSplitter is looking for the
> region directory in the hbase.wal.dir we specified rather than the
> hbase.rootdir.
> Looking at the source code,
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java]
> it uses the rootDir, which is walDir, as the tableDir root path.
> So if we use HBASE-17437, waldir and hbase rootdir are in different path or
> even in different filesystem, then the #5 uses walDir as tableDir is
> apparently wrong.
> CC: [~zyork], [~yuzhih...@gmail.com] Attached the logs for quick review.
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[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16537537#comment-16537537
]
Sean Busbey commented on HBASE-20723:
-
ping [~stack] this looks like another good candidate for 2.0.2
> Custom hbase.wal.dir results in data loss because we write recovered edits
> into a different place than where the recovering region server looks for them
>
>
> Key: HBASE-20723
> URL: https://issues.apache.org/jira/browse/HBASE-20723
> Project: HBase
> Issue Type: Bug
> Components: Recovery, wal
>Affects Versions: 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 2.0.0
>Reporter: Rohan Pednekar
>Assignee: Ted Yu
>Priority: Critical
> Fix For: 2.1.0, 1.5.0, 1.4.6
>
> Attachments: 20723.branch-1.txt, 20723.branch-2.txt, 20723.v1.txt,
> 20723.v10.txt, 20723.v2.txt, 20723.v3.txt, 20723.v4.txt, 20723.v5.txt,
> 20723.v5.txt, 20723.v6.txt, 20723.v7.txt, 20723.v8.txt, 20723.v9.txt, logs.zip
>
>
> Description:
> When custom hbase.wal.dir is configured the recovery system uses it in place
> of the HBase root dir and thus constructs an incorrect path for recovered
> edits when splitting WALs. This causes the recovery code in Region Servers to
> believe there are no recovered edits to replay, which causes a loss of writes
> that had not flushed prior to loss of a server.
>
> Reproduction:
> This is an Azure HDInsight HBase cluster with HDP 2.6. and HBase
> 1.1.2.2.6.3.2-14
> By default the underlying data is going to wasb://x@y/hbase
> I tried to move WAL folders to HDFS, which is the SSD mounted on each VM at
> /mnt.
> hbase.wal.dir= hdfs://mycluster/walontest
> hbase.wal.dir.perms=700
> hbase.rootdir.perms=700
> hbase.rootdir=
> wasb://XYZ[@hbaseperf.core.net|mailto:duohbase5ds...@duohbaseperf.blob.core.windows.net]/hbase
> Procedure to reproduce this issue:
> 1. create a table in hbase shell
> 2. insert a row in hbase shell
> 3. reboot the VM which hosts that region
> 4. scan the table in hbase shell and it is empty
> Looking at the region server logs:
> {code:java}
> 2018-06-12 22:08:40,455 INFO [RS_LOG_REPLAY_OPS-wn2-duohba:16020-0-Writer-1]
> wal.WALSplitter: This region's directory doesn't exist:
> hdfs://mycluster/walontest/data/default/tb1/b7fd7db5694eb71190955292b3ff7648.
> It is very likely that it was already split so it's safe to discard those
> edits.
> {code}
> The log split/replay ignored actual WAL due to WALSplitter is looking for the
> region directory in the hbase.wal.dir we specified rather than the
> hbase.rootdir.
> Looking at the source code,
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java]
> it uses the rootDir, which is walDir, as the tableDir root path.
> So if we use HBASE-17437, waldir and hbase rootdir are in different path or
> even in different filesystem, then the #5 uses walDir as tableDir is
> apparently wrong.
> CC: [~zyork], [~yuzhih...@gmail.com] Attached the logs for quick review.
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[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16515109#comment-16515109
]
Mike Drob commented on HBASE-20723:
---
[~stack] I think you want this is branch-2.0
> Custom hbase.wal.dir results in data loss because we write recovered edits
> into a different place than where the recovering region server looks for them
>
>
> Key: HBASE-20723
> URL: https://issues.apache.org/jira/browse/HBASE-20723
> Project: HBase
> Issue Type: Bug
> Components: Recovery, wal
>Affects Versions: 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 2.0.0
>Reporter: Rohan Pednekar
>Assignee: Ted Yu
>Priority: Critical
> Fix For: 2.1.0, 1.4.6
>
> Attachments: 20723.branch-1.txt, 20723.branch-2.txt, 20723.v1.txt,
> 20723.v10.txt, 20723.v2.txt, 20723.v3.txt, 20723.v4.txt, 20723.v5.txt,
> 20723.v5.txt, 20723.v6.txt, 20723.v7.txt, 20723.v8.txt, 20723.v9.txt, logs.zip
>
>
> Description:
> When custom hbase.wal.dir is configured the recovery system uses it in place
> of the HBase root dir and thus constructs an incorrect path for recovered
> edits when splitting WALs. This causes the recovery code in Region Servers to
> believe there are no recovered edits to replay, which causes a loss of writes
> that had not flushed prior to loss of a server.
>
> Reproduction:
> This is an Azure HDInsight HBase cluster with HDP 2.6. and HBase
> 1.1.2.2.6.3.2-14
> By default the underlying data is going to wasb://x@y/hbase
> I tried to move WAL folders to HDFS, which is the SSD mounted on each VM at
> /mnt.
> hbase.wal.dir= hdfs://mycluster/walontest
> hbase.wal.dir.perms=700
> hbase.rootdir.perms=700
> hbase.rootdir=
> wasb://XYZ[@hbaseperf.core.net|mailto:duohbase5ds...@duohbaseperf.blob.core.windows.net]/hbase
> Procedure to reproduce this issue:
> 1. create a table in hbase shell
> 2. insert a row in hbase shell
> 3. reboot the VM which hosts that region
> 4. scan the table in hbase shell and it is empty
> Looking at the region server logs:
> {code:java}
> 2018-06-12 22:08:40,455 INFO [RS_LOG_REPLAY_OPS-wn2-duohba:16020-0-Writer-1]
> wal.WALSplitter: This region's directory doesn't exist:
> hdfs://mycluster/walontest/data/default/tb1/b7fd7db5694eb71190955292b3ff7648.
> It is very likely that it was already split so it's safe to discard those
> edits.
> {code}
> The log split/replay ignored actual WAL due to WALSplitter is looking for the
> region directory in the hbase.wal.dir we specified rather than the
> hbase.rootdir.
> Looking at the source code,
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java]
> it uses the rootDir, which is walDir, as the tableDir root path.
> So if we use HBASE-17437, waldir and hbase rootdir are in different path or
> even in different filesystem, then the #5 uses walDir as tableDir is
> apparently wrong.
> CC: [~zyork], [~yuzhih...@gmail.com] Attached the logs for quick review.
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[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16514974#comment-16514974
]
Hudson commented on HBASE-20723:
Results for branch branch-1.4
[build #356 on
builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/branch-1.4/356/]:
(x) *{color:red}-1 overall{color}*
details (if available):
(x) {color:red}-1 general checks{color}
-- For more information [see general
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-1.4/356//General_Nightly_Build_Report/]
(x) {color:red}-1 jdk7 checks{color}
-- For more information [see jdk7
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-1.4/356//JDK7_Nightly_Build_Report/]
(x) {color:red}-1 jdk8 hadoop2 checks{color}
-- For more information [see jdk8 (hadoop2)
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-1.4/356//JDK8_Nightly_Build_Report_(Hadoop2)/]
(/) {color:green}+1 source release artifact{color}
-- See build output for details.
> Custom hbase.wal.dir results in data loss because we write recovered edits
> into a different place than where the recovering region server looks for them
>
>
> Key: HBASE-20723
> URL: https://issues.apache.org/jira/browse/HBASE-20723
> Project: HBase
> Issue Type: Bug
> Components: Recovery, wal
>Affects Versions: 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 2.0.0
>Reporter: Rohan Pednekar
>Assignee: Ted Yu
>Priority: Critical
> Attachments: 20723.branch-1.txt, 20723.branch-2.txt, 20723.v1.txt,
> 20723.v10.txt, 20723.v2.txt, 20723.v3.txt, 20723.v4.txt, 20723.v5.txt,
> 20723.v5.txt, 20723.v6.txt, 20723.v7.txt, 20723.v8.txt, 20723.v9.txt, logs.zip
>
>
> Description:
> When custom hbase.wal.dir is configured the recovery system uses it in place
> of the HBase root dir and thus constructs an incorrect path for recovered
> edits when splitting WALs. This causes the recovery code in Region Servers to
> believe there are no recovered edits to replay, which causes a loss of writes
> that had not flushed prior to loss of a server.
>
> Reproduction:
> This is an Azure HDInsight HBase cluster with HDP 2.6. and HBase
> 1.1.2.2.6.3.2-14
> By default the underlying data is going to wasb://x@y/hbase
> I tried to move WAL folders to HDFS, which is the SSD mounted on each VM at
> /mnt.
> hbase.wal.dir= hdfs://mycluster/walontest
> hbase.wal.dir.perms=700
> hbase.rootdir.perms=700
> hbase.rootdir=
> wasb://XYZ[@hbaseperf.core.net|mailto:duohbase5ds...@duohbaseperf.blob.core.windows.net]/hbase
> Procedure to reproduce this issue:
> 1. create a table in hbase shell
> 2. insert a row in hbase shell
> 3. reboot the VM which hosts that region
> 4. scan the table in hbase shell and it is empty
> Looking at the region server logs:
> {code:java}
> 2018-06-12 22:08:40,455 INFO [RS_LOG_REPLAY_OPS-wn2-duohba:16020-0-Writer-1]
> wal.WALSplitter: This region's directory doesn't exist:
> hdfs://mycluster/walontest/data/default/tb1/b7fd7db5694eb71190955292b3ff7648.
> It is very likely that it was already split so it's safe to discard those
> edits.
> {code}
> The log split/replay ignored actual WAL due to WALSplitter is looking for the
> region directory in the hbase.wal.dir we specified rather than the
> hbase.rootdir.
> Looking at the source code,
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java]
> it uses the rootDir, which is walDir, as the tableDir root path.
> So if we use HBASE-17437, waldir and hbase rootdir are in different path or
> even in different filesystem, then the #5 uses walDir as tableDir is
> apparently wrong.
> CC: [~zyork], [~yuzhih...@gmail.com] Attached the logs for quick review.
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[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16514894#comment-16514894
]
Hudson commented on HBASE-20723:
Results for branch master
[build #367 on
builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/master/367/]: (x)
*{color:red}-1 overall{color}*
details (if available):
(/) {color:green}+1 general checks{color}
-- For more information [see general
report|https://builds.apache.org/job/HBase%20Nightly/job/master/367//General_Nightly_Build_Report/]
(x) {color:red}-1 jdk8 hadoop2 checks{color}
-- For more information [see jdk8 (hadoop2)
report|https://builds.apache.org/job/HBase%20Nightly/job/master/367//JDK8_Nightly_Build_Report_(Hadoop2)/]
(x) {color:red}-1 jdk8 hadoop3 checks{color}
-- For more information [see jdk8 (hadoop3)
report|https://builds.apache.org/job/HBase%20Nightly/job/master/367//JDK8_Nightly_Build_Report_(Hadoop3)/]
(/) {color:green}+1 source release artifact{color}
-- See build output for details.
> Custom hbase.wal.dir results in data loss because we write recovered edits
> into a different place than where the recovering region server looks for them
>
>
> Key: HBASE-20723
> URL: https://issues.apache.org/jira/browse/HBASE-20723
> Project: HBase
> Issue Type: Bug
> Components: Recovery, wal
>Affects Versions: 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 2.0.0
>Reporter: Rohan Pednekar
>Assignee: Ted Yu
>Priority: Critical
> Attachments: 20723.branch-1.txt, 20723.branch-2.txt, 20723.v1.txt,
> 20723.v10.txt, 20723.v2.txt, 20723.v3.txt, 20723.v4.txt, 20723.v5.txt,
> 20723.v5.txt, 20723.v6.txt, 20723.v7.txt, 20723.v8.txt, 20723.v9.txt, logs.zip
>
>
> Description:
> When custom hbase.wal.dir is configured the recovery system uses it in place
> of the HBase root dir and thus constructs an incorrect path for recovered
> edits when splitting WALs. This causes the recovery code in Region Servers to
> believe there are no recovered edits to replay, which causes a loss of writes
> that had not flushed prior to loss of a server.
>
> Reproduction:
> This is an Azure HDInsight HBase cluster with HDP 2.6. and HBase
> 1.1.2.2.6.3.2-14
> By default the underlying data is going to wasb://x@y/hbase
> I tried to move WAL folders to HDFS, which is the SSD mounted on each VM at
> /mnt.
> hbase.wal.dir= hdfs://mycluster/walontest
> hbase.wal.dir.perms=700
> hbase.rootdir.perms=700
> hbase.rootdir=
> wasb://XYZ[@hbaseperf.core.net|mailto:duohbase5ds...@duohbaseperf.blob.core.windows.net]/hbase
> Procedure to reproduce this issue:
> 1. create a table in hbase shell
> 2. insert a row in hbase shell
> 3. reboot the VM which hosts that region
> 4. scan the table in hbase shell and it is empty
> Looking at the region server logs:
> {code:java}
> 2018-06-12 22:08:40,455 INFO [RS_LOG_REPLAY_OPS-wn2-duohba:16020-0-Writer-1]
> wal.WALSplitter: This region's directory doesn't exist:
> hdfs://mycluster/walontest/data/default/tb1/b7fd7db5694eb71190955292b3ff7648.
> It is very likely that it was already split so it's safe to discard those
> edits.
> {code}
> The log split/replay ignored actual WAL due to WALSplitter is looking for the
> region directory in the hbase.wal.dir we specified rather than the
> hbase.rootdir.
> Looking at the source code,
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java]
> it uses the rootDir, which is walDir, as the tableDir root path.
> So if we use HBASE-17437, waldir and hbase rootdir are in different path or
> even in different filesystem, then the #5 uses walDir as tableDir is
> apparently wrong.
> CC: [~zyork], [~yuzhih...@gmail.com] Attached the logs for quick review.
--
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[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16514854#comment-16514854
]
Hudson commented on HBASE-20723:
Results for branch branch-1
[build #350 on
builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/branch-1/350/]:
(x) *{color:red}-1 overall{color}*
details (if available):
(x) {color:red}-1 general checks{color}
-- For more information [see general
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-1/350//General_Nightly_Build_Report/]
(x) {color:red}-1 jdk7 checks{color}
-- For more information [see jdk7
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-1/350//JDK7_Nightly_Build_Report/]
(x) {color:red}-1 jdk8 hadoop2 checks{color}
-- For more information [see jdk8 (hadoop2)
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-1/350//JDK8_Nightly_Build_Report_(Hadoop2)/]
(x) {color:red}-1 source release artifact{color}
-- See build output for details.
> Custom hbase.wal.dir results in data loss because we write recovered edits
> into a different place than where the recovering region server looks for them
>
>
> Key: HBASE-20723
> URL: https://issues.apache.org/jira/browse/HBASE-20723
> Project: HBase
> Issue Type: Bug
> Components: Recovery, wal
>Affects Versions: 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 2.0.0
>Reporter: Rohan Pednekar
>Assignee: Ted Yu
>Priority: Critical
> Attachments: 20723.branch-1.txt, 20723.branch-2.txt, 20723.v1.txt,
> 20723.v10.txt, 20723.v2.txt, 20723.v3.txt, 20723.v4.txt, 20723.v5.txt,
> 20723.v5.txt, 20723.v6.txt, 20723.v7.txt, 20723.v8.txt, 20723.v9.txt, logs.zip
>
>
> Description:
> When custom hbase.wal.dir is configured the recovery system uses it in place
> of the HBase root dir and thus constructs an incorrect path for recovered
> edits when splitting WALs. This causes the recovery code in Region Servers to
> believe there are no recovered edits to replay, which causes a loss of writes
> that had not flushed prior to loss of a server.
>
> Reproduction:
> This is an Azure HDInsight HBase cluster with HDP 2.6. and HBase
> 1.1.2.2.6.3.2-14
> By default the underlying data is going to wasb://x@y/hbase
> I tried to move WAL folders to HDFS, which is the SSD mounted on each VM at
> /mnt.
> hbase.wal.dir= hdfs://mycluster/walontest
> hbase.wal.dir.perms=700
> hbase.rootdir.perms=700
> hbase.rootdir=
> wasb://XYZ[@hbaseperf.core.net|mailto:duohbase5ds...@duohbaseperf.blob.core.windows.net]/hbase
> Procedure to reproduce this issue:
> 1. create a table in hbase shell
> 2. insert a row in hbase shell
> 3. reboot the VM which hosts that region
> 4. scan the table in hbase shell and it is empty
> Looking at the region server logs:
> {code:java}
> 2018-06-12 22:08:40,455 INFO [RS_LOG_REPLAY_OPS-wn2-duohba:16020-0-Writer-1]
> wal.WALSplitter: This region's directory doesn't exist:
> hdfs://mycluster/walontest/data/default/tb1/b7fd7db5694eb71190955292b3ff7648.
> It is very likely that it was already split so it's safe to discard those
> edits.
> {code}
> The log split/replay ignored actual WAL due to WALSplitter is looking for the
> region directory in the hbase.wal.dir we specified rather than the
> hbase.rootdir.
> Looking at the source code,
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java]
> it uses the rootDir, which is walDir, as the tableDir root path.
> So if we use HBASE-17437, waldir and hbase rootdir are in different path or
> even in different filesystem, then the #5 uses walDir as tableDir is
> apparently wrong.
> CC: [~zyork], [~yuzhih...@gmail.com] Attached the logs for quick review.
--
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[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16514757#comment-16514757
]
Hudson commented on HBASE-20723:
Results for branch branch-2
[build #868 on
builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/branch-2/868/]:
(x) *{color:red}-1 overall{color}*
details (if available):
(/) {color:green}+1 general checks{color}
-- For more information [see general
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2/868//General_Nightly_Build_Report/]
(x) {color:red}-1 jdk8 hadoop2 checks{color}
-- For more information [see jdk8 (hadoop2)
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2/868//JDK8_Nightly_Build_Report_(Hadoop2)/]
(x) {color:red}-1 jdk8 hadoop3 checks{color}
-- For more information [see jdk8 (hadoop3)
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2/868//JDK8_Nightly_Build_Report_(Hadoop3)/]
(/) {color:green}+1 source release artifact{color}
-- See build output for details.
> Custom hbase.wal.dir results in data loss because we write recovered edits
> into a different place than where the recovering region server looks for them
>
>
> Key: HBASE-20723
> URL: https://issues.apache.org/jira/browse/HBASE-20723
> Project: HBase
> Issue Type: Bug
> Components: Recovery, wal
>Affects Versions: 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 2.0.0
>Reporter: Rohan Pednekar
>Assignee: Ted Yu
>Priority: Critical
> Attachments: 20723.branch-1.txt, 20723.branch-2.txt, 20723.v1.txt,
> 20723.v10.txt, 20723.v2.txt, 20723.v3.txt, 20723.v4.txt, 20723.v5.txt,
> 20723.v5.txt, 20723.v6.txt, 20723.v7.txt, 20723.v8.txt, 20723.v9.txt, logs.zip
>
>
> Description:
> When custom hbase.wal.dir is configured the recovery system uses it in place
> of the HBase root dir and thus constructs an incorrect path for recovered
> edits when splitting WALs. This causes the recovery code in Region Servers to
> believe there are no recovered edits to replay, which causes a loss of writes
> that had not flushed prior to loss of a server.
>
> Reproduction:
> This is an Azure HDInsight HBase cluster with HDP 2.6. and HBase
> 1.1.2.2.6.3.2-14
> By default the underlying data is going to wasb://x@y/hbase
> I tried to move WAL folders to HDFS, which is the SSD mounted on each VM at
> /mnt.
> hbase.wal.dir= hdfs://mycluster/walontest
> hbase.wal.dir.perms=700
> hbase.rootdir.perms=700
> hbase.rootdir=
> wasb://XYZ[@hbaseperf.core.net|mailto:duohbase5ds...@duohbaseperf.blob.core.windows.net]/hbase
> Procedure to reproduce this issue:
> 1. create a table in hbase shell
> 2. insert a row in hbase shell
> 3. reboot the VM which hosts that region
> 4. scan the table in hbase shell and it is empty
> Looking at the region server logs:
> {code:java}
> 2018-06-12 22:08:40,455 INFO [RS_LOG_REPLAY_OPS-wn2-duohba:16020-0-Writer-1]
> wal.WALSplitter: This region's directory doesn't exist:
> hdfs://mycluster/walontest/data/default/tb1/b7fd7db5694eb71190955292b3ff7648.
> It is very likely that it was already split so it's safe to discard those
> edits.
> {code}
> The log split/replay ignored actual WAL due to WALSplitter is looking for the
> region directory in the hbase.wal.dir we specified rather than the
> hbase.rootdir.
> Looking at the source code,
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java]
> it uses the rootDir, which is walDir, as the tableDir root path.
> So if we use HBASE-17437, waldir and hbase rootdir are in different path or
> even in different filesystem, then the #5 uses walDir as tableDir is
> apparently wrong.
> CC: [~zyork], [~yuzhih...@gmail.com] Attached the logs for quick review.
--
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[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16514686#comment-16514686
]
Hadoop QA commented on HBASE-20723:
---
| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
16s{color} | {color:blue} Docker mode activated. {color} |
| {color:blue}0{color} | {color:blue} patch {color} | {color:blue} 0m
1s{color} | {color:blue} The patch file was not named according to hbase's
naming conventions. Please see
https://yetus.apache.org/documentation/0.7.0/precommit-patchnames for
instructions. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} hbaseanti {color} | {color:green} 0m
0s{color} | {color:green} Patch does not have any anti-patterns. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m
0s{color} | {color:green} The patch appears to include 2 new or modified test
files. {color} |
|| || || || {color:brown} branch-2 Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 3m
46s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
42s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m
12s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green} 4m
12s{color} | {color:green} branch has no errors when building our shaded
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 1m
53s{color} | {color:green} branch-2 passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
29s{color} | {color:green} branch-2 passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 3m
32s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
41s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m
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| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 1m
11s{color} | {color:red} hbase-server: The patch generated 1 new + 73 unchanged
- 2 fixed = 74 total (was 75) {color} |
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0s{color} | {color:green} The patch has no whitespace issues. {color} |
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\\
\\
|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hbase:42ca976 |
| JIRA Issue | HBASE-20723 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12928064/20723.branch-2.txt |
| Optional Tests | asflicense javac javadoc unit findbugs shadedjars
hadoopcheck hbaseanti checkstyle compile |
| uname | Linux ca67c8470b80 3.13.0-139-generic #188-Ubuntu SMP Tue Jan 9
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| Build tool | maven |
| Personality |
/home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/component/dev-support/hbase-personality.sh
|
| git revision | branch-2 / 4e9f5e8d64 |
| maven | version: Apache Maven 3.5.3
(3383c37e1f9e9b3bc3df5050c29c8aff9f295297; 2018-02-24T19:49:05Z) |
| Default Java | 1.8.0_171 |
| findbugs | v3.1.0-RC3 |
| checkstyle |
https://builds.apache.org/job/PreCommit-HBASE-Build/13283/artif
[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16514642#comment-16514642
]
Ted Yu commented on HBASE-20723:
Integrated to master and branch-1 , waiting for Jenkins result before
integrating to other branches.
> Custom hbase.wal.dir results in data loss because we write recovered edits
> into a different place than where the recovering region server looks for them
>
>
> Key: HBASE-20723
> URL: https://issues.apache.org/jira/browse/HBASE-20723
> Project: HBase
> Issue Type: Bug
> Components: Recovery, wal
>Affects Versions: 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 2.0.0
>Reporter: Rohan Pednekar
>Assignee: Ted Yu
>Priority: Critical
> Attachments: 20723.branch-1.txt, 20723.branch-2.txt, 20723.v1.txt,
> 20723.v10.txt, 20723.v2.txt, 20723.v3.txt, 20723.v4.txt, 20723.v5.txt,
> 20723.v5.txt, 20723.v6.txt, 20723.v7.txt, 20723.v8.txt, 20723.v9.txt, logs.zip
>
>
> Description:
> When custom hbase.wal.dir is configured the recovery system uses it in place
> of the HBase root dir and thus constructs an incorrect path for recovered
> edits when splitting WALs. This causes the recovery code in Region Servers to
> believe there are no recovered edits to replay, which causes a loss of writes
> that had not flushed prior to loss of a server.
>
> Reproduction:
> This is an Azure HDInsight HBase cluster with HDP 2.6. and HBase
> 1.1.2.2.6.3.2-14
> By default the underlying data is going to wasb://x@y/hbase
> I tried to move WAL folders to HDFS, which is the SSD mounted on each VM at
> /mnt.
> hbase.wal.dir= hdfs://mycluster/walontest
> hbase.wal.dir.perms=700
> hbase.rootdir.perms=700
> hbase.rootdir=
> wasb://XYZ[@hbaseperf.core.net|mailto:duohbase5ds...@duohbaseperf.blob.core.windows.net]/hbase
> Procedure to reproduce this issue:
> 1. create a table in hbase shell
> 2. insert a row in hbase shell
> 3. reboot the VM which hosts that region
> 4. scan the table in hbase shell and it is empty
> Looking at the region server logs:
> {code:java}
> 2018-06-12 22:08:40,455 INFO [RS_LOG_REPLAY_OPS-wn2-duohba:16020-0-Writer-1]
> wal.WALSplitter: This region's directory doesn't exist:
> hdfs://mycluster/walontest/data/default/tb1/b7fd7db5694eb71190955292b3ff7648.
> It is very likely that it was already split so it's safe to discard those
> edits.
> {code}
> The log split/replay ignored actual WAL due to WALSplitter is looking for the
> region directory in the hbase.wal.dir we specified rather than the
> hbase.rootdir.
> Looking at the source code,
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java]
> it uses the rootDir, which is walDir, as the tableDir root path.
> So if we use HBASE-17437, waldir and hbase rootdir are in different path or
> even in different filesystem, then the #5 uses walDir as tableDir is
> apparently wrong.
> CC: [~zyork], [~yuzhih...@gmail.com] Attached the logs for quick review.
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[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16514641#comment-16514641
]
Ted Yu commented on HBASE-20723:
I ran TestLoadIncrementalHFiles with patch in branch-1 which passed.
Test failure was not related - the test is for bulk load.
> Custom hbase.wal.dir results in data loss because we write recovered edits
> into a different place than where the recovering region server looks for them
>
>
> Key: HBASE-20723
> URL: https://issues.apache.org/jira/browse/HBASE-20723
> Project: HBase
> Issue Type: Bug
> Components: Recovery, wal
>Affects Versions: 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 2.0.0
>Reporter: Rohan Pednekar
>Assignee: Ted Yu
>Priority: Critical
> Attachments: 20723.branch-1.txt, 20723.branch-2.txt, 20723.v1.txt,
> 20723.v10.txt, 20723.v2.txt, 20723.v3.txt, 20723.v4.txt, 20723.v5.txt,
> 20723.v5.txt, 20723.v6.txt, 20723.v7.txt, 20723.v8.txt, 20723.v9.txt, logs.zip
>
>
> Description:
> When custom hbase.wal.dir is configured the recovery system uses it in place
> of the HBase root dir and thus constructs an incorrect path for recovered
> edits when splitting WALs. This causes the recovery code in Region Servers to
> believe there are no recovered edits to replay, which causes a loss of writes
> that had not flushed prior to loss of a server.
>
> Reproduction:
> This is an Azure HDInsight HBase cluster with HDP 2.6. and HBase
> 1.1.2.2.6.3.2-14
> By default the underlying data is going to wasb://x@y/hbase
> I tried to move WAL folders to HDFS, which is the SSD mounted on each VM at
> /mnt.
> hbase.wal.dir= hdfs://mycluster/walontest
> hbase.wal.dir.perms=700
> hbase.rootdir.perms=700
> hbase.rootdir=
> wasb://XYZ[@hbaseperf.core.net|mailto:duohbase5ds...@duohbaseperf.blob.core.windows.net]/hbase
> Procedure to reproduce this issue:
> 1. create a table in hbase shell
> 2. insert a row in hbase shell
> 3. reboot the VM which hosts that region
> 4. scan the table in hbase shell and it is empty
> Looking at the region server logs:
> {code:java}
> 2018-06-12 22:08:40,455 INFO [RS_LOG_REPLAY_OPS-wn2-duohba:16020-0-Writer-1]
> wal.WALSplitter: This region's directory doesn't exist:
> hdfs://mycluster/walontest/data/default/tb1/b7fd7db5694eb71190955292b3ff7648.
> It is very likely that it was already split so it's safe to discard those
> edits.
> {code}
> The log split/replay ignored actual WAL due to WALSplitter is looking for the
> region directory in the hbase.wal.dir we specified rather than the
> hbase.rootdir.
> Looking at the source code,
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java]
> it uses the rootDir, which is walDir, as the tableDir root path.
> So if we use HBASE-17437, waldir and hbase rootdir are in different path or
> even in different filesystem, then the #5 uses walDir as tableDir is
> apparently wrong.
> CC: [~zyork], [~yuzhih...@gmail.com] Attached the logs for quick review.
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[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16514627#comment-16514627
]
Hadoop QA commented on HBASE-20723:
---
| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 14m
2s{color} | {color:blue} Docker mode activated. {color} |
| {color:blue}0{color} | {color:blue} patch {color} | {color:blue} 0m
2s{color} | {color:blue} The patch file was not named according to hbase's
naming conventions. Please see
https://yetus.apache.org/documentation/0.7.0/precommit-patchnames for
instructions. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:blue}0{color} | {color:blue} findbugs {color} | {color:blue} 0m
1s{color} | {color:blue} Findbugs executables are not available. {color} |
| {color:green}+1{color} | {color:green} hbaseanti {color} | {color:green} 0m
0s{color} | {color:green} Patch does not have any anti-patterns. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m
0s{color} | {color:green} The patch appears to include 3 new or modified test
files. {color} |
|| || || || {color:brown} branch-1 Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
35s{color} | {color:green} branch-1 passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
31s{color} | {color:green} branch-1 passed with JDK v1.8.0_172 {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
34s{color} | {color:green} branch-1 passed with JDK v1.7.0_181 {color} |
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15s{color} | {color:green} branch-1 passed {color} |
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17s{color} | {color:green} branch has no errors when building our shaded
downstream artifacts. {color} |
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23s{color} | {color:green} branch-1 passed with JDK v1.8.0_172 {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
33s{color} | {color:green} branch-1 passed with JDK v1.7.0_181 {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m
25s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 0m
30s{color} | {color:green} the patch passed with JDK v1.8.0_172 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
30s{color} | {color:green} the patch passed {color} |
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33s{color} | {color:green} the patch passed with JDK v1.7.0_181 {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 0m
33s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 1m
12s{color} | {color:red} hbase-server: The patch generated 3 new + 189
unchanged - 3 fixed = 192 total (was 192) {color} |
| {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m
0s{color} | {color:green} The patch has no whitespace issues. {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green} 2m
19s{color} | {color:green} patch has no errors when building our shaded
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green}
1m 26s{color} | {color:green} Patch does not cause any errors with Hadoop
2.7.4. {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red} 0m
23s{color} | {color:red} hbase-server-jdk1.8.0_172 with JDK v1.8.0_172
generated 1 new + 3 unchanged - 0 fixed = 4 total (was 3) {color} |
| {color:red}-1{color} | {color:red} javadoc {color} | {color:red} 0m
34s{color} | {color:red} hbase-server-jdk1.7.0_181 with JDK v1.7.0_181
generated 1 new + 3 unchanged - 0 fixed = 4 total (was 3) {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:red}-1{color} | {color:red} unit {color} | {color:red}103m 52s{color}
| {color:red} hbase-server in the patch failed. {color} |
| {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m
18s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
| {color:black}{color} | {color:black} {color} | {color:black}134m 15s{color} |
{color:black} {color} |
\\
\\
|| Reason || Tests ||
| Failed junit tests | hadoop.hbase.mapreduce.TestLoadIncrem
[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16514612#comment-16514612
]
Hadoop QA commented on HBASE-20723:
---
| (x) *{color:red}-1 overall{color}* |
\\
\\
|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
16s{color} | {color:blue} Docker mode activated. {color} |
| {color:blue}0{color} | {color:blue} patch {color} | {color:blue} 0m
1s{color} | {color:blue} The patch file was not named according to hbase's
naming conventions. Please see
https://yetus.apache.org/documentation/0.7.0/precommit-patchnames for
instructions. {color} |
|| || || || {color:brown} Prechecks {color} ||
| {color:green}+1{color} | {color:green} hbaseanti {color} | {color:green} 0m
0s{color} | {color:green} Patch does not have any anti-patterns. {color} |
| {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m
0s{color} | {color:green} The patch does not contain any @author tags. {color} |
| {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m
0s{color} | {color:green} The patch appears to include 2 new or modified test
files. {color} |
|| || || || {color:brown} master Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 4m
41s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
44s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 1m
11s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} shadedjars {color} | {color:green} 4m
55s{color} | {color:green} branch has no errors when building our shaded
downstream artifacts. {color} |
| {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m
9s{color} | {color:green} master passed {color} |
| {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m
30s{color} | {color:green} master passed {color} |
|| || || || {color:brown} Patch Compile Tests {color} ||
| {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 4m
52s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m
47s{color} | {color:green} the patch passed {color} |
| {color:green}+1{color} | {color:green} javac {color} | {color:green} 1m
47s{color} | {color:green} the patch passed {color} |
| {color:red}-1{color} | {color:red} checkstyle {color} | {color:red} 1m
13s{color} | {color:red} hbase-server: The patch generated 1 new + 76 unchanged
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0s{color} | {color:green} The patch has no whitespace issues. {color} |
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2s{color} | {color:green} patch has no errors when building our shaded
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| {color:green}+1{color} | {color:green} hadoopcheck {color} | {color:green}
10m 19s{color} | {color:green} Patch does not cause any errors with Hadoop
2.7.4 or 3.0.0. {color} |
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15s{color} | {color:green} the patch passed {color} |
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30s{color} | {color:green} the patch passed {color} |
|| || || || {color:brown} Other Tests {color} ||
| {color:green}+1{color} | {color:green} unit {color} | {color:green}109m
29s{color} | {color:green} hbase-server in the patch passed. {color} |
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21s{color} | {color:green} The patch does not generate ASF License warnings.
{color} |
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{color:black} {color} |
\\
\\
|| Subsystem || Report/Notes ||
| Docker | Client=17.05.0-ce Server=17.05.0-ce Image:yetus/hbase:b002b0b |
| JIRA Issue | HBASE-20723 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12928053/20723.v10.txt |
| Optional Tests | asflicense javac javadoc unit findbugs shadedjars
hadoopcheck hbaseanti checkstyle compile |
| uname | Linux f313d0ad447b 3.13.0-139-generic #188-Ubuntu SMP Tue Jan 9
14:43:09 UTC 2018 x86_64 GNU/Linux |
| Build tool | maven |
| Personality |
/home/jenkins/jenkins-slave/workspace/PreCommit-HBASE-Build/component/dev-support/hbase-personality.sh
|
| git revision | master / 0825462436 |
| maven | version: Apache Maven 3.5.3
(3383c37e1f9e9b3bc3df5050c29c8aff9f295297; 2018-02-24T19:49:05Z) |
| Default Java | 1.8.0_171 |
| findbugs | v3.1.0-RC3 |
| checkstyle |
https://builds.apache.org/job/PreCommit-HBASE-Build/13281/artifact/patchpr
[jira] [Commented] (HBASE-20723) Custom hbase.wal.dir results in data loss because we write recovered edits into a different place than where the recovering region server looks for them
[
https://issues.apache.org/jira/browse/HBASE-20723?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16514534#comment-16514534
]
Ted Yu commented on HBASE-20723:
Patch for branch-1 adds correction to TestWALFactory in the following form:
{code}
-HRegion region = HRegion.openHRegion(this.conf, this.fs, hbaseWALRootDir,
hri, htd, wal);
+HRegion region = HRegion.openHRegion(this.conf, this.fs, hbaseRootDir,
hri, htd, wal);
{code}
i.e. region should be created under rootdir, not under wal.dir
> Custom hbase.wal.dir results in data loss because we write recovered edits
> into a different place than where the recovering region server looks for them
>
>
> Key: HBASE-20723
> URL: https://issues.apache.org/jira/browse/HBASE-20723
> Project: HBase
> Issue Type: Bug
> Components: Recovery, wal
>Affects Versions: 1.4.0, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 2.0.0
>Reporter: Rohan Pednekar
>Assignee: Ted Yu
>Priority: Critical
> Attachments: 20723.branch-1.txt, 20723.v1.txt, 20723.v10.txt,
> 20723.v2.txt, 20723.v3.txt, 20723.v4.txt, 20723.v5.txt, 20723.v5.txt,
> 20723.v6.txt, 20723.v7.txt, 20723.v8.txt, 20723.v9.txt, logs.zip
>
>
> Description:
> When custom hbase.wal.dir is configured the recovery system uses it in place
> of the HBase root dir and thus constructs an incorrect path for recovered
> edits when splitting WALs. This causes the recovery code in Region Servers to
> believe there are no recovered edits to replay, which causes a loss of writes
> that had not flushed prior to loss of a server.
>
> Reproduction:
> This is an Azure HDInsight HBase cluster with HDP 2.6. and HBase
> 1.1.2.2.6.3.2-14
> By default the underlying data is going to wasb://x@y/hbase
> I tried to move WAL folders to HDFS, which is the SSD mounted on each VM at
> /mnt.
> hbase.wal.dir= hdfs://mycluster/walontest
> hbase.wal.dir.perms=700
> hbase.rootdir.perms=700
> hbase.rootdir=
> wasb://XYZ[@hbaseperf.core.net|mailto:duohbase5ds...@duohbaseperf.blob.core.windows.net]/hbase
> Procedure to reproduce this issue:
> 1. create a table in hbase shell
> 2. insert a row in hbase shell
> 3. reboot the VM which hosts that region
> 4. scan the table in hbase shell and it is empty
> Looking at the region server logs:
> {code:java}
> 2018-06-12 22:08:40,455 INFO [RS_LOG_REPLAY_OPS-wn2-duohba:16020-0-Writer-1]
> wal.WALSplitter: This region's directory doesn't exist:
> hdfs://mycluster/walontest/data/default/tb1/b7fd7db5694eb71190955292b3ff7648.
> It is very likely that it was already split so it's safe to discard those
> edits.
> {code}
> The log split/replay ignored actual WAL due to WALSplitter is looking for the
> region directory in the hbase.wal.dir we specified rather than the
> hbase.rootdir.
> Looking at the source code,
>
> [https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/wal/WALSplitter.java]
> it uses the rootDir, which is walDir, as the tableDir root path.
> So if we use HBASE-17437, waldir and hbase rootdir are in different path or
> even in different filesystem, then the #5 uses walDir as tableDir is
> apparently wrong.
> CC: [~zyork], [~yuzhih...@gmail.com] Attached the logs for quick review.
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