Hi lztaomin,
> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode
> = Session expired
indicates that you have experienced the "Juliet Pause" issue, which means you
ran into a JVM garbage collection that lasted longer than the configured
ZooKeeper timeout threshold.
Hi,
It's a ZK expiry on sunday 1st. Root cause could be the leap second bug?
N.
On Thu, Jul 5, 2012 at 8:59 AM, lztaomin wrote:
> HI ALL
> My HBase group a total of 3 machine, Hadoop HBase mounted in the same
> machine, zookeeper using HBase own. Operation 3 months after the reported
>
part means?
Each line is a GC cicle?
Thanks,
Pablo
-Original Message-
From: Lars George [mailto:lars.geo...@gmail.com]
Sent: segunda-feira, 2 de julho de 2012 06:43
To: user@hbase.apache.org
Subject: Re: Hmaster and HRegionServer disappearance reason to ask
Hi lztaomin,
> org.apach
Times: user=0.07
sys=151.48, real=151.47 secs]
What does each part means?
Each line is a GC cicle?
Thanks,
Pablo
-Original Message-
From: Lars George [mailto:lars.geo...@gmail.com]
Sent: segunda-feira, 2 de julho de 2012 06:43
To: user@hbase.apache.org
Subject: Re: Hmaster and HRegionServ
Did you check "http://hbase.apache.org/book.html#perf.os.swap";?
-邮件原件-
发件人: Pablo Musa [mailto:pa...@psafe.com]
发送时间: 2012年7月6日 5:38
收件人: user@hbase.apache.org
主题: RE: Hmaster and HRegionServer disappearance reason to ask
I am having the same problem. I tried N different th
ta-feira, 5 de julho de 2012 20:55
To: user@hbase.apache.org
Subject: Re: Hmaster and HRegionServer disappearance reason to ask
Pablo, instead of CMSIncrementalMode try UseParNewGC.. That seemed to be the
silver bullet when I was dealing with HBase region server crashes
Rega
m: Pablo Musa [mailto:pa...@psafe.com]
Sent: Tuesday, July 10, 2012 7:58 PM
To: user@hbase.apache.org
Subject: RE: Hmaster and HRegionServer disappearance reason to ask
I tried to change the flag but yesterday it happened again:
Application time: 0.3025790 seconds
30013.866: [GC 30013.866: [ParNew:
his HDFS-3600.
Please let us know your findings.
--
Regards,
Laxman
> -Original Message-
> From: Pablo Musa [mailto:pa...@psafe.com]
> Sent: Tuesday, July 10, 2012 7:58 PM
> To: user@hbase.apache.org
> Subject: RE: Hmaster and HRegionServer disappearance reason to ask
>
&
RE: Hmaster and HRegionServer disappearance reason to ask
IIUC, this seems to be a problem with Direct memory cleanup.
I've seen this problem mostly with application using lot of NIO (RegionServer,
DataNode).
Symptoms of this problem
1) Allocated heap is 1 GB
2) VIRT/RES will occupy 10GB or e
> > 1) Fix the direct memory usage to a fixed value -
> XX:MaxDirectMemorySize=1G
>
> This flag should be in RS ou DN?
We need to apply for both but limit can be increased based on your load (May
be 2G).
Also we can to apply to all processes which are having following symptoms.
1) Allocated heap
ge-
From: Laxman [mailto:lakshman...@huawei.com]
Sent: quinta-feira, 12 de julho de 2012 01:22
To: Pablo Musa; user@hbase.apache.org
Subject: RE: Hmaster and HRegionServer disappearance reason to ask
> > 1) Fix the direct memory usage to a fixed value -
> XX:MaxDirectMemorySize=1G
>
&
To: 'Pablo Musa'; user@hbase.apache.org
Subject: RE: Hmaster and HRegionServer disappearance reason to ask
> > 1) Fix the direct memory usage to a fixed value -
> XX:MaxDirectMemorySize=1G
>
> This flag should be in RS ou DN?
We need to apply for both but limit can be incre
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