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https://issues.apache.org/jira/browse/ZOOKEEPER-1797?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14493766#comment-14493766
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Yasuhito Fukuda commented on ZOOKEEPER-1797:
--------------------------------------------
In addition, You can try earthquake in just one-line command, too: `docker run
-i -t --rm osrg/earthquake-zookeeper-1797`
{noformat}
# docker run -i -t --rm osrg/earthquake-zookeeper-1797
[INFO] Reproducing ZOOKEEPER-1797 (PurgeTxnLog may delete data logs during roll)
[INFO] Cleaning..
[INFO] Starting earthquake (ca91befb0556bddbf8229ef9b6650ec94cf79471)
[INFO] Starting ZooKeeper (4d08af6da87eac3b565d599b0d24683e2e734827)
[INFO] Starting createZnode.sh (see /createZnode.log)
[INFO] Restarting ZooKeeper
[INFO] Checking Znodes (see /validateZnode.log)
[INFO] Done
Unexpected exception when visiting znode!: error_count=5
[IMPORTANT] SUCCESS: earthquake reproduced the bug.
[INFO] For more information, please refer to https://github.com/osrg/earthquake
and
https://github.com/osrg/zookeeper/blob/zookeeper-1797/earthquake/zookeeper-1797/README.txt
[INFO] Exiting..
[INFO] If you want to drop to shell after the test, please run `docker run -i
-t osrg/earthquake-zookeeper-1797 /bin/bash`, then run `/init.py` in the
container.
{noformat}
Regards,
Fukuda
> PurgeTxnLog may delete data logs during roll
> --------------------------------------------
>
> Key: ZOOKEEPER-1797
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-1797
> Project: ZooKeeper
> Issue Type: Bug
> Components: server
> Affects Versions: 3.4.5
> Reporter: Derek Dagit
> Assignee: Rakesh R
> Priority: Blocker
> Fix For: 3.4.7, 3.5.0
>
> Attachments: ZOOKEEPER-1797.patch, ZOOKEEPER-1797.patch,
> ZOOKEEPER-1797.patch, ZOOKEEPER-1797.patch
>
>
> org.apache.zookeeper.server.PurgeTxnLog deletes old data logs and snapshots,
> keeping the newest N snapshots and any data logs that have been written since
> the snapshot.
> It does this by listing the available snapshots & logs and creates a
> blacklist of snapshots and logs that should not be deleted. Then, it
> searches for and deletes all logs and snapshots that are not in this list.
> It appears that if logs are rolling or a new snapshot is created during this
> process, then these newer files will be unintentionally deleted.
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