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Mantis - Resin
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| ID: | Category: | Severity: | Reproducibility: | Date Submitted: | Last Update: |
| 113 | minor | always | 04-20-05 00:00 | 11-30-05 14:42 | |
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| Reporter: | sam | Platform: | |||
| Assigned To: | OS: | ||||
| Priority: | urgent | OS Version: | |||
| Status: | closed | Product Version: | 3.0.12 | ||
| Product Build: | 3.0.12 | Resolution: | fixed | ||
| Projection: | none | ||||
| ETA: | none | Fixed in Version: | 3.0.14 | ||
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| Summary: | 0000113: cluster-store taking up too much space | ||||
| Description: |
RSN-104 > Having completed the upgrade, when the site is working, it's working > wonderfully, however we're having a number of teething problems... > > Teething problem 1: > ------------------- > We were using the old <tcp-store> in our old session config stuff and > have migrated to the new persistant store. > > The config we have is: > <server> > <cluster> > <srun server-id="a" host="10.0.1.1" port="6803" index="1"/> > <srun server-id="b" host="10.0.1.2" port="6803" index="2"/> > <srun server-id="c" host="10.0.1.3" port="6803" index="3"/> > <srun server-id="d" host="10.0.1.4" port="6803" index="4"/> > </cluster> > <persistent-store type="cluster"> > <init path="/home/resin-sessions/cluster"/> > </persistent-store> > <web-app-default> > <session-config> > <session-max>4096</session-max> > <session-timeout>240</session-timeout> > <enable-cookies>true</enable-cookies> > <enable-url-rewriting>true</enable-url-rewriting> > <cookie-max-age>9999999999</cookie-max-age> > <cookie-domain>.moneyam.com</cookie-domain> > <use-persistent-store/> > </session-config> > </web-app-default> > </server> > > (+ lots of other stuff, but that's the immediately relevent sections) > > Now, on each of our application servers we have the following: > > resin@appserv3:/usr/local/resin-3.0$ du -H /home/resin-sessions/ > 5.5G /home/resin-sessions/cluster > 5.5G /home/resin-sessions > > 5.5 gigabytes of information. > > This is causing a number of problems: > 1) disk space. 5.5Gb * 4 servers. We're running out of disk space for > this data. > 2) startup times. It's taking an inordinate amount of time to start > resin, I guess due to it having to load in some of that session data. > > Comparing this to the session store that we had with our resin-2.1.14 > config: > > resin@appserv3:webapps/shares/WEB-INF$ du -H sessions/ | tail -1 > 37M sessions > > 37 Mb, vs 5.5Gb. > > What have we done wrong? > > What can I do to resolve this? > > Every few days I'm having to stop everything (web servers) trash the > session store and start again, else it's taking an age if we have to > restart an application server. > > Teething problem 2: > ------------------- > This morning I had loads of errors like this in our log files: > [08:15:58.030] at > com.caucho.db.jdbc.PreparedStatementImpl.executeUpdate(PreparedStatementImpl.java:325) > [08:15:58.030] at > com.caucho.server.cluster.ClusterStore.updateAccess(ClusterStore.java:932) > [08:15:58.030] at > com.caucho.server.hmux.HmuxClusterRequest.accessObject(HmuxClusterRequest.java:536) > [08:15:58.030] at > com.caucho.server.hmux.HmuxClusterRequest.handleRequest(HmuxClusterRequest.java:269) > [08:15:58.030] at > com.caucho.server.hmux.HmuxRequest.scanHeaders(HmuxRequest.java:604) > [08:15:58.030] at > com.caucho.server.hmux.HmuxRequest.handleRequest(HmuxRequest.java:337) > [08:15:58.030] at > com.caucho.server.port.TcpConnection.run(TcpConnection.java:341) > [08:15:58.030] at com.caucho.util.ThreadPool.runTasks(ThreadPool.java:467) > [08:15:58.030] at com.caucho.util.ThreadPool.run(ThreadPool.java:408) > [08:15:58.030] at java.lang.Thread.run(Thread.java:595) > [08:15:58.032] java.sql.SQLException: transaction timed out waiting for > lock 510 > [08:15:58.032] at com.caucho.db.store.Lock.queue(Lock.java:348) > [08:15:58.032] at com.caucho.db.store.Lock.queue(Lock.java:315) > [08:15:58.032] at > com.caucho.db.store.Lock.lockReadAndUpgrade(Lock.java:190) > [08:15:58.032] at > com.caucho.db.store.Transaction.lockAutoCommitWrite(Transaction.java:237) > [08:15:58.032] at > com.caucho.db.sql.UpdateQuery.execute(UpdateQuery.java:106) > [08:15:58.032] at > com.caucho.db.jdbc.PreparedStatementImpl.execute(PreparedStatementImpl.java:349) > [08:15:58.032] at > com.caucho.db.jdbc.PreparedStatementImpl.executeUpdate(PreparedStatementImpl.java:325) > [08:15:58.032] at > com.caucho.server.cluster.ClusterStore.updateAccess(ClusterStore.java:932) > [08:15:58.032] at > com.caucho.server.hmux.HmuxClusterRequest.accessObject(HmuxClusterRequest.java:536) |
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