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Problem in adding region server
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| Jun 2, 2011 | |||||
 Praveenesh Kumar |
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Region server blocking updates for a region for 90s September 24, 2010 11:12:05 AM Hey, We seem to have come across a bug in hbase with how it is flushing the memstore when it is full, I think it's related to this… Region server OME April 17, 2011 08:02:51 PM Hi, My HBase deployment has been working great but recently the regionservers always got out of memory error. The symptom is like this: region servers failed with OME, and then I restarted them. One of region servers used up the maximum memory I… What's the region server doing? March 1, 2011 07:08:49 PM My cluster (10 nodes, hbase-0.20.6 + hadoop 0.20.2) is very very slow for any operation like disable table or delete. Master's thread dump says they are blocked by the metaScanner thread. When I looked at the log file on the .META RS there are no… Help : region server jvm core September 25, 2010 11:33:31 PM Hi HBaser, we meet a problem when a meta region down then another region server load region. a region server core. out machine enviroment: 8 cores CPU, 48G memory, 12 1T disks our region server heap size : 36000 jdk java… region server shutdown, why? December 16, 2010 03:29:59 AM Hello, I'm doing performance test on hbase 0.20.6. My cluster contains 7 regionservers. After lodding 4TB data, one regionserver shutdown. Exception info in the log is below. Can someone tell me what's the matter? Regionserver log: … Decommission a Region Server April 8, 2011 04:22:55 PM Is there a procedure to decommission a region server? If I just kill a region server process, the master tries to reconnect again and again and the master logs looks like this 11/04/08 21:08:35 WARN util.FSUtils: Waited 2533953ms for lease… Re: Region server crashes when using replication March 23, 2011 05:21:21 PM (ugh last email bounced 3 TIMES with spam score too high, something weird is going on so clearing all old text) That really sounds like a different issue, and more inline with what I guessed earlier, that some other region server is deleting the… Re: Region server crashes when using replication March 27, 2011 12:05:59 PM So the message "No log to process" means that nothing was assigned to replicate at all... I wonder if it's HBASE-3664 that did that... but you should be able to confirm by looking at the region server log when it starts, it should be adding it's… Increase region server throughput October 11, 2010 09:49:20 PM I would like to tune region server to increase throughput..On a 10 node cluster, I'm getting 5 sec per put. (this is unbatched/unbuffered). Other than region server handler count property is there anything else I can tune to increase… Re: Region server crashes when using replication March 23, 2011 05:28:28 PM On Wed, Mar 23, 2011 at 3:22 PM, Eran Kutner <er### @gigya.com> wrote: > They are using two separate ensembles, 3 servers in each. I'm trying to > create total independence for each cluster. Can you find out who deleted the znode that… Re: Region server crashes when using replication March 27, 2011 05:18:03 AM Had more time to look into it and verify that indeed data is not replicated because the server doesn't see it in the log. So I tried restarting the RS and sure enough when the table (which has only one region) transitioned to another RS the… GC took 299 secs causing region server to die July 29, 2010 03:17:07 PM I kept running into the stop-the-world GC during batch import of data into hbase. The configuration of a node in the 8-node cluster is as follows. * 4-core * 64-bit JVM * 8 GB of memory * CDH2 for hadoop and 0.20.5 for hbase * TT: 128 MB * DN:… Region server forced to shut down July 13, 2010 07:43:34 AM Hi all: We applied hadoop/hbase for NLP analysis and intermediate data storage, and encountered a string of problems when the data scale is up. Attached is a region server log that shows how it crashed after running a mapreduce task with… Re: Region server crashes when using replication March 28, 2011 01:29:33 PM Ah turns out the issue was way simpler than I thought. One example: 2011-03-25 13:55:02,103 DEBUG org.apache.hadoop.hbase.replication.regionserver.ReplicationSource: Replication is disabled, sleeping 1000 times 10 2011-03-25 13:55:07,762 INFO… Re: Region server crashes when using replication March 24, 2011 03:14:04 AM Here's what I found. I started with 2 RSs running in the cluster (#1 and #4). This is how ZK looked at that point: [zk: hadoop1-zk3:2181(CONNECTED) 25] ls /hbase/rs [hadoop1-s01,60020,1300952215842, hadoop1-s04,60020,1300881354710] [zk:… Region server crashes when using replication March 22, 2011 12:40:40 PM Hi, I'm trying to use replication between two HBase clusters and I'm encountering all kinds of crashes and weird behavior. First, it seems that starting a region server when the peer ZKs are not available will cause the server to fail to start: … Re: Region server crashes when using replication March 22, 2011 01:22:30 PM First issue: UnknownHostException is unforgiving, your machines need to be able to talk to haddop2-zk3 (is that a typo?) and it seems that at least that one can't. The reason the machine dies is that we usually try to "fail fast" in HBase. Second… Re: Region server crashes when using replication March 22, 2011 02:00:03 PM Thanks, J-D. As for the first issue, why does this behavior make sense? What happens when the connection between the two cluster fails? Will the region servers of the primary fail as well? or at least won't be able to start? Seems very radical. … Re: Region server crashes when using replication March 22, 2011 02:01:49 PM Inline. J-D On Tue, Mar 22, 2011 at 11:51 AM, Eran Kutner <er### @gigya.com> wrote: > Thanks, J-D. > As for the first issue, why does this behavior make sense? What happens when > the connection between the two cluster fails? Will… Re: Region server crashes when using replication March 22, 2011 02:37:59 PM Actually, it will probably be connection timeout, not connection refused when there is no connection between the two clusters. Is there a workaround I can implement now for HBASE-3664, can I write something in ZK so the server has an old entry to… Adding google chart library on my web server ! basic problem , but can't fix it ... April 11, 2011 Hi I wrote a PHP code for displaying a graph with data read from a text file. I tested it on my localhost (Wamp) and it worked perfectly... Now I… How to set region with _SESSION April 26, 2011 hi how can I set the region (en, da, de etc) with mod_rewrite? the rewrite condition has to look like this www.domain.com/en/ www.domain.com/dk/… C# Regex for a match outside a specific region April 8, 2011 I have to find occurrences of a certain string (needle) within another string (haystack) that don't occur between specific "braces". For example… Adding server-specific options to an Eclipse-managed Tomcat instance (in server.xml) April 5, 2011 Simply said, how can I make sure that the server.xml which Eclipse produces for every separate project that relies on Tomcat, will always contain a… Should I Populate Country/Region Names at DB or Application Level? January 9, 2011 I'm going through a tough decision (at least for me)... 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I followed this : http://www.Debian-administration.org/articles/412 Basically, I created a new file… Adding an external server in Aptana Studio 3 May 11, 2011 How can I add an external server in Aptana Studio 3, since there is no Servers view? Here are some instructions on how to do it but they both use… Trouble adding PHP modules to Apache 2.2 Server January 22, 2011 I run a Windows 7 x64 machine with apache 2.2 and PHP 5.2.17 Whenever I try to add the PHP dll to the httpd.conf file, apache will not start. this… Adding exception to firewall in Windows Server 2003/2008 using C# January 17, 2011 I want to add exceptions to windows firewall in Windows Server 2003/2008. I have written the code which works fine for Windows 7, but it doesn't… Server error 500 when adding .htaccess file in the root folder. March 21, 2011 Hi,..i read a lot of server error 500 questions related to the famous .htaccess file...but i have still not found an answer to this error. i have a… Server error 500 when adding .htaccess file in the root folder. March 21, 2011 Hi, I read a lot of server error 500 questions related to the famous .htaccess file but I have still not found an answer to this error. I have a… Centos Server/MySQL server problem February 13, 2011 Hello all, I currently run a website we get about 15,000-20,000 hits a day. We currently run a very active forum, that is hosted using Vbulletin… [WEIRD problem] my server becomes a spam server April 11, 2011 Hi, I have a dedicated server with CentOS+MySQL installed from godaddy.com. Recently I had some very weird problems: I installed a PhP application… | |||||
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