[opencms-dev] CmsDbSqlException

[Konstantin Ott]

Hello list,

since a few days we find in the opencms log file SQL Exceptions. It 
seems to happen when publishing a file.
It is not reproducable and the SELECT is ok. There is a lot of load on 
the system and there is a lot of changing content. But the problem only 
appeared 2 times last week.
OpenCMS seems to loose a connection every now and then. Some time ago we 
switched the system from Suse-Mysql5.0.51 to Debian-Mysql 5.1.45.
I don't know if its the reason.
Has anybody got an idea?

greetings
Konstantin Ott





org.opencms.db.CmsDbSqlException: An SQL error occurred when executing 
the following query: com.mysql.jdbc.PreparedStatement at f22345d: SELECT 
CMS_OFFLINE_CONTENTS.FILE_CONTENT FROM CMS_OFFLINE_CONTENTS WHERE 
CMS_OFFLINE_CONTENTS.RESOURCE_ID='99a69fba-bd41-11dc-9d14-69bdd7447ccc'.
         at 
org.opencms.db.generic.CmsVfsDriver.readContent(CmsVfsDriver.java:1468)
         at 
org.opencms.ocee.cache.CmsVfsCache.readContent(CmsVfsCache.java:469)
         at 
org.opencms.db.generic.CmsProjectDriver.publishFileContent(CmsProjectDriver.java:1068)
         at 
org.opencms.ocee.cache.CmsProjectCache.publishFileContent(CmsProjectCache.java:385)
         at 
org.opencms.db.generic.CmsProjectDriver.publishChangedFile(CmsProjectDriver.java:2760)
         at 
org.opencms.db.generic.CmsProjectDriver.publishFile(CmsProjectDriver.java:964)
         at 
org.opencms.ocee.cache.CmsProjectCache.publishFile(CmsProjectCache.java:361)
         at 
org.opencms.db.generic.CmsProjectDriver.publishProject(CmsProjectDriver.java:1455)
         at 
org.opencms.ocee.cache.CmsProjectCache.publishProject(CmsProjectCache.java:421)
         at 
org.opencms.db.CmsDriverManager.publishJob(CmsDriverManager.java:5221)
         at 
org.opencms.publish.CmsPublishThread.run(CmsPublishThread.java:199)
Caused by: com.mysql.jdbc.CommunicationsException: Communications link 
failure due to underlying exception:

** BEGIN NESTED EXCEPTION **

java.lang.ArrayIndexOutOfBoundsException

STACKTRACE:

java.lang.ArrayIndexOutOfBoundsException
         at java.lang.System.arraycopy(Native Method)
         at 
com.mysql.jdbc.CompressedInputStream.read(CompressedInputStream.java:281)
         at com.mysql.jdbc.MysqlIO.readFully(MysqlIO.java:1994)
         at com.mysql.jdbc.MysqlIO.reuseAndReadPacket(MysqlIO.java:2464)
         at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2916)
         at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:885)
         at com.mysql.jdbc.MysqlIO.nextRow(MysqlIO.java:1360)
         at com.mysql.jdbc.MysqlIO.readSingleRowSet(MysqlIO.java:2358)
         at com.mysql.jdbc.MysqlIO.getResultSet(MysqlIO.java:451)
         at 
com.mysql.jdbc.MysqlIO.readResultsForQueryOrUpdate(MysqlIO.java:2076)
         at com.mysql.jdbc.MysqlIO.readAllResults(MysqlIO.java:1451)
         at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1787)
         at com.mysql.jdbc.Connection.execSQL(Connection.java:3256)
         at 
com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1313)
         at 
com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1448)
         at 
org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:93)
         at 
org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:93)
         at 
org.opencms.db.generic.CmsVfsDriver.readContent(CmsVfsDriver.java:1453)
         at 
org.opencms.ocee.cache.CmsVfsCache.readContent(CmsVfsCache.java:469)
         at 
org.opencms.db.generic.CmsProjectDriver.publishFileContent(CmsProjectDriver.java:1068)
         at 
org.opencms.ocee.cache.CmsProjectCache.publishFileContent(CmsProjectCache.java:385)
         at 
org.opencms.db.generic.CmsProjectDriver.publishChangedFile(CmsProjectDriver.java:2760)
         at 
org.opencms.db.generic.CmsProjectDriver.publishFile(CmsProjectDriver.java:964)
         at 
org.opencms.ocee.cache.CmsProjectCache.publishFile(CmsProjectCache.java:361)
         at 
org.opencms.db.generic.CmsProjectDriver.publishProject(CmsProjectDriver.java:1455)
         at 
org.opencms.ocee.cache.CmsProjectCache.publishProject(CmsProjectCache.java:421)
         at 
org.opencms.db.CmsDriverManager.publishJob(CmsDriverManager.java:5221)
         at 
org.opencms.publish.CmsPublishThread.run(CmsPublishThread.java:199)


** END NESTED EXCEPTION **



Last packet sent to the server was 2 ms ago.
         at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:2922)
         at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:885)
         at com.mysql.jdbc.MysqlIO.nextRow(MysqlIO.java:1360)
         at com.mysql.jdbc.MysqlIO.readSingleRowSet(MysqlIO.java:2358)
         at com.mysql.jdbc.MysqlIO.getResultSet(MysqlIO.java:451)
         at 
com.mysql.jdbc.MysqlIO.readResultsForQueryOrUpdate(MysqlIO.java:2076)
         at com.mysql.jdbc.MysqlIO.readAllResults(MysqlIO.java:1451)
         at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:1787)
         at com.mysql.jdbc.Connection.execSQL(Connection.java:3256)
         at 
com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:1313)
         at 
com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:1448)
         at 
org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:93)
         at 
org.apache.commons.dbcp.DelegatingPreparedStatement.executeQuery(DelegatingPreparedStatement.java:93)
         at 
org.opencms.db.generic.CmsVfsDriver.readContent(CmsVfsDriver.java:1453)

-- 
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Konstantin Ott
Albert Bauer Digital | Systementwicklung

Albert Bauer Companies GmbH&  Co. KG
Conventstraße 1 - 3
22089 Hamburg
Fon: +49 40 25109-224
Fax: +49 40 25109-121
mailto:konstantin.ott at albertbauer.com
http://albertbauer.com


Albert Bauer Companies GmbH&  Co. KG
P.H.G. Reproduktionsgesellschaft Conventhaus mbH
Sitz der Gesellschaft: Hamburg
Handelsregister: Amtsgericht Hamburg HRB 11120
Geschäftsführer: Harald Dau, Carsten Dau, Rolf Gehrke, Marcus Müller