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From Avi Steiner <>
Subject ZooKeeper transaction logs
Date Sun, 09 Jul 2017 15:07:08 GMT

I'm using Zookeeper 3.4.6

The ZK log data folder keeps growing with transaction logs files (log.*).

I set the following in zoo.cfg:

Per ZK log, it reads those parameters:

2017-07-09 17:44:59,792 [myid:] - INFO  [main:DatadirCleanupManager@78] - autopurge.snapRetainCount
set to 3
2017-07-09 17:44:59,792 [myid:] - INFO  [main:DatadirCleanupManager@79] - autopurge.purgeInterval
set to 1

It also says that cleanup process is running:

2017-07-09 17:44:59,792 [myid:] - INFO  [PurgeTask:DatadirCleanupManager$PurgeTask@138] -
Purge task started.
2017-07-09 17:44:59,823 [myid:] - INFO  [PurgeTask:DatadirCleanupManager$PurgeTask@144] -
Purge task completed.

But actually nothing is deleted.
Every service restart, new file is created.

The only parameter I managed to change is preAllocSize, which means the minimum size per file.
The default is 64MB. I changed it to 10KB only for watching the effect.

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