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From an...@apache.org
Subject [zookeeper] branch master updated: ZOOKEEPER-3382: Update Documentation: If you only have one storage device
Date Wed, 29 May 2019 15:14:41 GMT
This is an automated email from the ASF dual-hosted git repository.

andor pushed a commit to branch master
in repository https://gitbox.apache.org/repos/asf/zookeeper.git


The following commit(s) were added to refs/heads/master by this push:
     new f7bdab0  ZOOKEEPER-3382: Update Documentation: If you only have one storage device
f7bdab0 is described below

commit f7bdab002aa01677145654f8a1f93a45969d22cd
Author: Beluga Behr <dam6923@gmail.com>
AuthorDate: Wed May 29 17:14:34 2019 +0200

    ZOOKEEPER-3382: Update Documentation: If you only have one storage device
    
    Author: Beluga Behr <dam6923@gmail.com>
    
    Reviewers: andor@apache.org
    
    Closes #935 from BELUGABEHR/ZOOKEEPER-3382
---
 zookeeper-docs/src/main/resources/markdown/zookeeperAdmin.md       | 5 +++--
 zookeeper-docs/src/main/resources/markdown/zookeeperProgrammers.md | 7 ++++---
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/zookeeper-docs/src/main/resources/markdown/zookeeperAdmin.md b/zookeeper-docs/src/main/resources/markdown/zookeeperAdmin.md
index ceb0e20..9e51fdd 100644
--- a/zookeeper-docs/src/main/resources/markdown/zookeeperAdmin.md
+++ b/zookeeper-docs/src/main/resources/markdown/zookeeperAdmin.md
@@ -1880,8 +1880,9 @@ ZooKeeper correctly:
     returns a response. A dedicated transaction log device is key to
     consistent good performance. Putting the log on a busy device will
     adversely effect performance. If you only have one storage device,
-    put trace files on NFS and increase the snapshotCount; it doesn't
-    eliminate the problem, but it should mitigate it.
+    increase the snapCount so that snapshot files are generated less often;
+    it does not eliminate the problem, but it makes more resources available
+    for the transaction log.
 
 * *incorrect Java heap size* :
     You should take special care to set your Java max heap size
diff --git a/zookeeper-docs/src/main/resources/markdown/zookeeperProgrammers.md b/zookeeper-docs/src/main/resources/markdown/zookeeperProgrammers.md
index f819ced..bdf3932 100644
--- a/zookeeper-docs/src/main/resources/markdown/zookeeperProgrammers.md
+++ b/zookeeper-docs/src/main/resources/markdown/zookeeperProgrammers.md
@@ -1487,9 +1487,10 @@ ZooKeeper users fall into:
   ZooKeeper must sync transactions to media before it returns a
   response. A dedicated transaction log device is key to consistent good
   performance. Putting the log on a busy device will adversely effect
-  performance. If you only have one storage device, put trace files on
-  NFS and increase the snapshotCount; it doesn't eliminate the problem,
-  but it can mitigate it.
+  performance. If you only have one storage device,
+  increase the snapCount so that snapshot files are generated less often;
+  it does not eliminate the problem, but it makes more resources available
+  for the transaction log.
 1. Set your Java max heap size correctly. It is very important to
   _avoid swapping._ Going to disk unnecessarily will
   almost certainly degrade your performance unacceptably. Remember, in


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