Ok, fix has been checked in.
Karl
On Wed, Nov 28, 2012 at 3:19 AM, Karl Wright <daddy...@gmail.com> wrote:
> The ticket is CONNECTORS-571.
>
> Karl
>
> On Wed, Nov 28, 2012 at 3:12 AM, Karl Wright <daddy...@gmail.com> wrote:
>> Hi Shigeki,
>>
>> This confirms my theory that our MySQL driver is not detecting all
>> cases where MySQL gives up on a transaction. We need to correct this,
>> but in order to do that we need the SQL error code that MySQL throws
>> in this case:
>>
>> Caused by: java.sql.SQLException: Lock wait timeout exceeded; try
>> restarting transaction
>>
>> It looks like somebody actually posted the SQL error code that MYSQL
>> sends out with this online:
>>
>> ERROR 1205 (HY000): Lock wait timeout exceeded; try restarting transaction
>>
>> Are you able to build ManifoldCF? I will check in a fix to trunk for
>> this problem shortly; it would be great if you could try it out.
>>
>> Thanks,
>> Karl
>>
>> On Wed, Nov 28, 2012 at 2:30 AM, Shigeki Kobayashi
>> <shigeki.kobayas...@g.softbank.co.jp> wrote:
>>> Hi Karl,
>>>
>>>
>>> Here is a log of Database Exception that is occurred while crawling Web.
>>> This time, socket timeout exception did not happen so it might be a
>>> different matter.
>>> Even though the job status remain "Running", it seems that MCF stopped
>>> crawling (The job was not aborted).
>>> --------------------------------
>>> ERROR 2012-11-22 19:36:28,593 (Worker thread '16') - Worker thread aborting
>>> and restarting due to database connection reset: Database exception:
>>> Exception doing query: Lock wait timeout exceeded; try restarting
>>> transaction
>>> org.apache.manifoldcf.core.interfaces.ManifoldCFException: Database
>>> exception: Exception doing query: Lock wait timeout exceeded; try restarting
>>> transaction
>>> at
>>> org.apache.manifoldcf.core.database.Database.executeViaThread(Database.java:681)
>>> at
>>> org.apache.manifoldcf.core.database.Database.executeUncachedQuery(Database.java:709)
>>> at
>>> org.apache.manifoldcf.core.database.Database$QueryCacheExecutor.create(Database.java:1394)
>>> at
>>> org.apache.manifoldcf.core.cachemanager.CacheManager.findObjectsAndExecute(CacheManager.java:144)
>>> at
>>> org.apache.manifoldcf.core.database.Database.executeQuery(Database.java:186)
>>> at
>>> org.apache.manifoldcf.core.database.DBInterfaceMySQL.performModification(DBInterfaceMySQL.java:678)
>>> at
>>> org.apache.manifoldcf.core.database.DBInterfaceMySQL.performUpdate(DBInterfaceMySQL.java:275)
>>> at
>>> org.apache.manifoldcf.core.database.BaseTable.performUpdate(BaseTable.java:80)
>>> at
>>> org.apache.manifoldcf.crawler.jobs.HopCount.markForDelete(HopCount.java:1426)
>>> at
>>> org.apache.manifoldcf.crawler.jobs.HopCount.doDeleteInvalidation(HopCount.java:1356)
>>> at
>>> org.apache.manifoldcf.crawler.jobs.HopCount.doFinish(HopCount.java:1057)
>>> at
>>> org.apache.manifoldcf.crawler.jobs.HopCount.finishParents(HopCount.java:389)
>>> at
>>> org.apache.manifoldcf.crawler.jobs.JobManager.finishDocuments(JobManager.java:4309)
>>> at
>>> org.apache.manifoldcf.crawler.system.WorkerThread.run(WorkerThread.java:557)
>>> Caused by: java.sql.SQLException: Lock wait timeout exceeded; try restarting
>>> transaction
>>> at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
>>> at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3609)
>>> at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3541)
>>> at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2002)
>>> at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2163)
>>> at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2624)
>>> at
>>> com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2127)
>>> at
>>> com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2427)
>>> at
>>> com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2345)
>>> at
>>> com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2330)
>>> at
>>> org.apache.manifoldcf.core.database.Database.execute(Database.java:840)
>>> at
>>> org.apache.manifoldcf.core.database.Database$ExecuteQueryThread.run(Database.java:641)
>>>
>>> --------------------------------
>>>
>>>
>>> Here is a log of Database Exception that is occurred while crawling files
>>> using Windows shares connection:
>>>
>>>
>>> --------------------------------
>>> 2012/11/22 23:39:28 ERROR (Job start thread) - Job start thread aborting and
>>> restarting due to database connection reset: Database exception: Exception
>>> doing query: Lock wait timeout exceeded; try restarting transaction
>>> org.apache.manifoldcf.core.interfaces.ManifoldCFException: Database
>>> exception: Exception doing query: Lock wait timeout exceeded; try restarting
>>> transaction
>>> at
>>> org.apache.manifoldcf.core.database.Database.executeViaThread(Database.java:681)
>>> at
>>> org.apache.manifoldcf.core.database.Database.executeUncachedQuery(Database.java:709)
>>> at
>>> org.apache.manifoldcf.core.database.Database$QueryCacheExecutor.create(Database.java:1394)
>>> at
>>> org.apache.manifoldcf.core.cachemanager.CacheManager.findObjectsAndExecute(CacheManager.java:144)
>>> at
>>> org.apache.manifoldcf.core.database.Database.executeQuery(Database.java:186)
>>> at
>>> org.apache.manifoldcf.core.database.DBInterfaceMySQL.performQuery(DBInterfaceMySQL.java:852)
>>> at
>>> org.apache.manifoldcf.crawler.jobs.JobManager.startJobs(JobManager.java:4711)
>>> at
>>> org.apache.manifoldcf.crawler.system.JobStartThread.run(JobStartThread.java:68)
>>> Caused by: java.sql.SQLException: Lock wait timeout exceeded; try restarting
>>> transaction
>>> at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
>>> at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3609)
>>> at com.mysql.jdbc.MysqlIO.nextRowFast(MysqlIO.java:1578)
>>> at com.mysql.jdbc.MysqlIO.nextRow(MysqlIO.java:1434)
>>> at com.mysql.jdbc.MysqlIO.readSingleRowSet(MysqlIO.java:2925)
>>> at com.mysql.jdbc.MysqlIO.getResultSet(MysqlIO.java:477)
>>> at
>>> com.mysql.jdbc.MysqlIO.readResultsForQueryOrUpdate(MysqlIO.java:2631)
>>> at com.mysql.jdbc.MysqlIO.readAllResults(MysqlIO.java:1800)
>>> at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2221)
>>> at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2624)
>>> at
>>> com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2127)
>>> at
>>> com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2293)
>>> at
>>> org.apache.manifoldcf.core.database.Database.execute(Database.java:826)
>>> at
>>> org.apache.manifoldcf.core.database.Database$ExecuteQueryThread.run(Database.java:641)
>>> 2012/11/22 23:39:28 ERROR (Finisher thread) - Finisher thread aborting and
>>> restarting due to database connection reset: Database exception: Exception
>>> doing query: Lock wait timeout exceeded; try restarting transaction
>>> org.apache.manifoldcf.core.interfaces.ManifoldCFException: Database
>>> exception: Exception doing query: Lock wait timeout exceeded; try restarting
>>> transaction
>>> at
>>> org.apache.manifoldcf.core.database.Database.executeViaThread(Database.java:681)
>>> at
>>> org.apache.manifoldcf.core.database.Database.executeUncachedQuery(Database.java:709)
>>> at
>>> org.apache.manifoldcf.core.database.Database$QueryCacheExecutor.create(Database.java:1394)
>>> at
>>> org.apache.manifoldcf.core.cachemanager.CacheManager.findObjectsAndExecute(CacheManager.java:144)
>>> at
>>> org.apache.manifoldcf.core.database.Database.executeQuery(Database.java:186)
>>> at
>>> org.apache.manifoldcf.core.database.DBInterfaceMySQL.performQuery(DBInterfaceMySQL.java:852)
>>> at
>>> org.apache.manifoldcf.crawler.jobs.JobManager.finishJobs(JobManager.java:6469)
>>> at
>>> org.apache.manifoldcf.crawler.system.FinisherThread.run(FinisherThread.java:64)
>>> Caused by: java.sql.SQLException: Lock wait timeout exceeded; try restarting
>>> transaction
>>> at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
>>> at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3609)
>>> at com.mysql.jdbc.MysqlIO.nextRowFast(MysqlIO.java:1578)
>>> at com.mysql.jdbc.MysqlIO.nextRow(MysqlIO.java:1434)
>>> at com.mysql.jdbc.MysqlIO.readSingleRowSet(MysqlIO.java:2925)
>>> at com.mysql.jdbc.MysqlIO.getResultSet(MysqlIO.java:477)
>>> at
>>> com.mysql.jdbc.MysqlIO.readResultsForQueryOrUpdate(MysqlIO.java:2631)
>>> at com.mysql.jdbc.MysqlIO.readAllResults(MysqlIO.java:1800)
>>> at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2221)
>>> at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2624)
>>> at
>>> com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2127)
>>> at
>>> com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2293)
>>> at
>>> org.apache.manifoldcf.core.database.Database.execute(Database.java:826)
>>> at
>>> org.apache.manifoldcf.core.database.Database$ExecuteQueryThread.run(Database.java:641)
>>> 2012/11/22 23:39:30 ERROR (Worker thread '253') - Worker thread aborting and
>>> restarting due to database connection reset: Database exception: Exception
>>> doing query: Lock wait timeout exceeded; try restarting transaction
>>> org.apache.manifoldcf.core.interfaces.ManifoldCFException: Database
>>> exception: Exception doing query: Lock wait timeout exceeded; try restarting
>>> transaction
>>> at
>>> org.apache.manifoldcf.core.database.Database.executeViaThread(Database.java:681)
>>> at
>>> org.apache.manifoldcf.core.database.Database.executeUncachedQuery(Database.java:709)
>>> at
>>> org.apache.manifoldcf.core.database.Database$QueryCacheExecutor.create(Database.java:1394)
>>> at
>>> org.apache.manifoldcf.core.cachemanager.CacheManager.findObjectsAndExecute(CacheManager.java:144)
>>> at
>>> org.apache.manifoldcf.core.database.Database.executeQuery(Database.java:186)
>>> at
>>> org.apache.manifoldcf.core.database.DBInterfaceMySQL.performModification(DBInterfaceMySQL.java:678)
>>> at
>>> org.apache.manifoldcf.core.database.DBInterfaceMySQL.performUpdate(DBInterfaceMySQL.java:275)
>>> at
>>> org.apache.manifoldcf.core.database.BaseTable.performUpdate(BaseTable.java:80)
>>> at
>>> org.apache.manifoldcf.crawler.jobs.JobQueue.updateCompletedRecord(JobQueue.java:722)
>>> at
>>> org.apache.manifoldcf.crawler.jobs.JobManager.markDocumentCompletedMultiple(JobManager.java:2435)
>>> at
>>> org.apache.manifoldcf.crawler.system.WorkerThread.run(WorkerThread.java:765)
>>> Caused by: java.sql.SQLException: Lock wait timeout exceeded; try restarting
>>> transaction
>>> at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
>>> at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3609)
>>> at com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3541)
>>> at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2002)
>>> at com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2163)
>>> at com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2624)
>>> at
>>> com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2127)
>>> at
>>> com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2427)
>>> at
>>> com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2345)
>>> at
>>> com.mysql.jdbc.PreparedStatement.executeUpdate(PreparedStatement.java:2330)
>>> at
>>> org.apache.manifoldcf.core.database.Database.execute(Database.java:840)
>>> at
>>> org.apache.manifoldcf.core.database.Database$ExecuteQueryThread.run(Database.java:641)
>>> --------------------------------
>>> Regards,
>>>
>>> Shigeki
>>>
>>>
>>> 2012/11/27 Karl Wright <daddy...@gmail.com>
>>>>
>>>> Hi Shigeki,
>>>>
>>>> Deadlocks are a fact of life in a very multithreaded application.
>>>> They are supposed to be caught by ManifoldCF, and the transactions
>>>> retried. I can believe, though, that MySQL might set different
>>>> sqlexception status codes for different kinds of deadlock - if instead
>>>> of a sqlexception with a deadlock code, MySQL sometimes just drops the
>>>> JDBC connection, that might explain the problem.
>>>>
>>>> Can you refresh my memory and please send the ManifoldCF log part that
>>>> includes the socket timeout exception? I can then see if it is coming
>>>> from the same place.
>>>>
>>>> Karl
>>>>
>>>> On Tue, Nov 27, 2012 at 12:50 AM, Shigeki Kobayashi
>>>> <shigeki.kobayas...@g.softbank.co.jp> wrote:
>>>> > Hi Karl,
>>>> >
>>>> > According to INNODB STATUS in MySQL, while crawling web, the following
>>>> > DEADLOCK occurred.
>>>> > A few minutes later, database exception occurred in MCF.
>>>> > So do you think probably this DEADLOCK could cause the exception?
>>>> >
>>>> > I do not know the error code from MySQL yet, but maybe I could obtain it
>>>> > if
>>>> > you could let me
>>>> > know what code in what file should be added in order to output the error
>>>> > code into manifold.log
>>>> >
>>>> >
>>>> >
>>>> > ------------------------------------------------------------------------------
>>>> > INNODB STATUS:
>>>> > =====================================
>>>> > 121127 11:17:49 INNODB MONITOR OUTPUT
>>>> > =====================================
>>>> > Per second averages calculated from the last 60 seconds
>>>> > -----------------
>>>> > BACKGROUND THREAD
>>>> > -----------------
>>>> > srv_master_thread loops: 401163 1_second, 401162 sleeps, 40049
>>>> > 10_second,
>>>> > 674 background, 674 flush
>>>> > srv_master_thread log flush and writes: 401182
>>>> > ----------
>>>> > SEMAPHORES
>>>> > ----------
>>>> > OS WAIT ARRAY INFO: reservation count 7319, signal count 6842
>>>> > Mutex spin waits 3702, rounds 111120, OS waits 3626
>>>> > RW-shared spins 2189, rounds 63516, OS waits 1767
>>>> > RW-excl spins 255, rounds 57147, OS waits 1897
>>>> > Spin rounds per wait: 30.02 mutex, 29.02 RW-shared, 224.11 RW-excl
>>>> > ------------------------
>>>> > LATEST DETECTED DEADLOCK
>>>> > ------------------------
>>>> > 121122 19:31:55
>>>> > *** (1) TRANSACTION:
>>>> > TRANSACTION 3021A0, ACTIVE 32 sec starting index read
>>>> > mysql tables in use 1, locked 1
>>>> > LOCK WAIT 64 lock struct(s), heap size 14776, 110 row lock(s), undo log
>>>> > entries 51
>>>> > MySQL thread id 24, OS thread handle 0x7ff8ffe06700, query id 41385
>>>> > 10.249.23.9 manifoldcf Sending data
>>>> > SELECT parentidhash,linktype,distance FROM hopcount WHERE
>>>> > jobid=1351139121625 AND parentidhash IN
>>>> >
>>>> > ('A0ED08F9D45547FF54B72869FE5E7C3C5B0E910A','F5E2F6C6B43FB5D030C4F0AE8E22AD07536475A8','C0856A1AFF55F7BB20BCAE317E18F588EEFB806D','019253D99FCB265A20A3CFF11D0443937FE2D4D0','21A979F9BB9120F747B0B605EDABA71EB364A584','A8B5B7245D0810584B764470B42CFDF71C33A7E5','6FE272988943D3BD64E285951A1A6739011FC15E','1E1CA954A3E31BFC28FFE1BE70757408341CDB6A','8DAE8B4734A30FE2D346EEBD1CCC3A16468F7B7B','028CD3E7FF7F493E3EC3980FF303DB05DC42404E','924E0608A5C4505C9272A69B8C1F82C7B883A11F','13F6402C96E0979EF5F17338DFF96BD9912125D9','43174E34AA07C34237D622A43A82AFE3825C3870','32892282A6866BD181BDA0BA85801192370C84F3','0311197289655163E1452E90D43A5D96D9A4E751','178C8BE84AEDC9F362CE3A2CC2702F6C2CD9CBA1','7CF15B193B3BDA097BEB437272FC5E413B86B63D')
>>>> > AND linktype IN ('link','redirect')
>>>> > *** (1) WAITING FOR THIS LOCK TO BE GRANTED:
>>>> > RECORD LOCKS space id 0 page no 2449 n bits 192 index `PRIMARY` of table
>>>> > `manifoldcf`.`hopcount` trx id 3021A0 lock mode S locks rec but not gap
>>>> > waiting
>>>> > Record lock, heap no 28 PHYSICAL RECORD: n_fields 8; compact format;
>>>> > info
>>>> > bits 0
>>>> > 0: len 8; hex 8000013b261c6d8a; asc ;& m ;;
>>>> > 1: len 6; hex 0000002f4e47; asc /NG;;
>>>> > 2: len 7; hex 900000021b06ec; asc ;;
>>>> > 3: len 1; hex 4e; asc N;;
>>>> > 4: len 30; hex
>>>> > 384441453842343733344133304645324433343645454244314343433341; asc
>>>> > 8DAE8B4734A30FE2D346EEBD1CCC3A; (total 40 bytes);
>>>> > 5: len 8; hex 8000000000000001; asc ;;
>>>> > 6: len 8; hex 8000013a962ad9d9; asc : * ;;
>>>> > 7: len 4; hex 6c696e6b; asc link;;
>>>> >
>>>> > *** (2) TRANSACTION:
>>>> > TRANSACTION 302208, ACTIVE 3 sec fetching rows
>>>> > mysql tables in use 3, locked 3
>>>> > 1436 lock struct(s), heap size 145848, 122906 row lock(s)
>>>> > MySQL thread id 39, OS thread handle 0x7ff8ffa37700, query id 40699
>>>> > 10.249.23.9 manifoldcf preparing
>>>> > UPDATE hopcount SET deathmark='D',distance=-1 WHERE id IN(SELECT ownerid
>>>> > FROM hopdeletedeps t0 WHERE t0.jobid=1351139121625 AND
>>>> > t0.childidhash='D573BDC6D59C7A7CC2862646322F69EA5574C36D' AND
>>>> > EXISTS(SELECT
>>>> > 'x' FROM intrinsiclink t1 WHERE t1.jobid=t0.jobid AND
>>>> > t1.linktype=t0.linktype AND t1.parentidhash=t0.parentidhash AND
>>>> > t1.childidhash=t0.childidhash AND t1.isnew='B'))
>>>> > *** (2) HOLDS THE LOCK(S):
>>>> > RECORD LOCKS space id 0 page no 2449 n bits 192 index `PRIMARY` of table
>>>> > `manifoldcf`.`hopcount` trx id 302208 lock_mode X
>>>> > Record lock, heap no 1 PHYSICAL RECORD: n_fields 1; compact format; info
>>>> > bits 0
>>>> > 0: len 8; hex 73757072656d756d; asc supremum;;
>>>> >
>>>> > ...
>>>> > ...
>>>> > ...
>>>> >
>>>> > *** WE ROLL BACK TRANSACTION (1)
>>>> > ------------
>>>> > TRANSACTIONS
>>>> > ------------
>>>> > Trx id counter 38375F
>>>> > Purge done for trx's n:o < 3024F7 undo n:o < 0
>>>> > History list length 652
>>>> > LIST OF TRANSACTIONS FOR EACH SESSION:
>>>> > ---TRANSACTION 0, not started
>>>> > MySQL thread id 110, OS thread handle 0x7ff914113700, query id 1436936
>>>> > localhost root
>>>> > SHOW ENGINE INNODB STATUS
>>>> > ---TRANSACTION 0, not started
>>>> > MySQL thread id 106, OS thread handle 0x7ff9035b3700, query id 1435785
>>>> > localhost root
>>>> > ---TRANSACTION 38375E, not started
>>>> > MySQL thread id 99, OS thread handle 0x7ff8ff72b700, query id 1436934
>>>> > 10.249.23.9 manifoldcf
>>>> > --------
>>>> > ...
>>>> >
>>>> > ------------------------------------------------------------------------------
>>>> >
>>>> >
>>>> > Likewise, file crawling using Windows shares faced similar matter.
>>>> > DEADLOCK
>>>> > occured in MySQL and
>>>> > Database Exception occured in MCF as well:
>>>> >
>>>> >
>>>> > ------------------------------------------------------------------------------
>>>> >
>>>> > | InnoDB | |
>>>> > =====================================
>>>> > 121126 16:05:21 INNODB MONITOR OUTPUT
>>>> > =====================================
>>>> > Per second averages calculated from the last 48 seconds
>>>> > -----------------
>>>> > BACKGROUND THREAD
>>>> > -----------------
>>>> > srv_master_thread loops: 327427 1_second, 327300 sleeps, 32438
>>>> > 10_second,
>>>> > 3544 background, 3544 flush
>>>> > srv_master_thread log flush and writes: 327670
>>>> > ----------
>>>> > SEMAPHORES
>>>> > ----------
>>>> > OS WAIT ARRAY INFO: reservation count 1808090, signal count 2140762
>>>> > Mutex spin waits 18194682, rounds 103331992, OS waits 842070
>>>> > RW-shared spins 1311114, rounds 25796436, OS waits 457767
>>>> > RW-excl spins 577964, rounds 15904805, OS waits 333210
>>>> > Spin rounds per wait: 5.68 mutex, 19.68 RW-shared, 27.52 RW-excl
>>>> > ------------------------
>>>> > LATEST DETECTED DEADLOCK
>>>> > ------------------------
>>>> > 121122 23:38:46
>>>> > *** (1) TRANSACTION:
>>>> > TRANSACTION 674749, ACTIVE 7 sec inserting
>>>> > mysql tables in use 1, locked 1
>>>> > LOCK WAIT 4 lock struct(s), heap size 1248, 3 row lock(s), undo log
>>>> > entries
>>>> > 1
>>>> > MySQL thread id 99, OS thread handle 0x7f7d4a356700, query id 23942404
>>>> > localhost 127.0.0.1 manifoldcf update
>>>> > INSERT INTO jobqueue
>>>> >
>>>> > (docpriority,id,priorityset,docid,status,dochash,checktime,checkaction,jobid)
>>>> > VALUES
>>>> >
>>>> > (13.830866056523654,1353595119848,1353595119385,'smb://xxx/xxx','P','88517951DB2E0666151E7B5308C9FDCB16F062AD',0,'R',1353575409046)
>>>> > *** (1) WAITING FOR THIS LOCK TO BE GRANTED:
>>>> > RECORD LOCKS space id 0 page no 221894 n bits 208 index `I1352346865065`
>>>> > of
>>>> > table `manifoldcf`.`jobqueue` trx id 674749 lock_mode X locks gap before
>>>> > rec
>>>> > insert intention waiting
>>>> > Record lock, heap no 134 PHYSICAL RECORD: n_fields 3; compact format;
>>>> > info
>>>> > bits 0
>>>> > 0: len 30; hex
>>>> > 383835313838444433453134444134354242384531383433424330393444; asc
>>>> > 885188DD3E14DA45BB8E1843BC094D; (total 40 bytes);
>>>> > 1: len 8; hex 8000013b2761a596; asc ;'a ;;
>>>> > 2: len 8; hex 8000013b287bd5c9; asc ;({ ;;
>>>> >
>>>> > *** (2) TRANSACTION:
>>>> > TRANSACTION 6740DF, ACTIVE 9 sec fetching rows
>>>> > mysql tables in use 5, locked 5
>>>> > 23571 lock struct(s), heap size 2439608, 1058037 row lock(s)
>>>> > MySQL thread id 45, OS thread handle 0x7f7d21231700, query id 23937374
>>>> > localhost 127.0.0.1 manifoldcf Sending data
>>>> > SELECT
>>>> >
>>>> > t0.id,t0.jobid,t0.dochash,t0.docid,t0.status,t0.failtime,t0.failcount,t0.priorityset
>>>> > FROM jobqueue t0 WHERE t0.status IN ('P','G') AND t0.checkaction='R' AND
>>>> > t0.checktime<=1353595117855 AND EXISTS(SELECT 'x' FROM jobs t1 WHERE
>>>> > t1.status IN ('A','a') AND t1.id=t0.jobid AND t1.priority=5) AND NOT
>>>> > EXISTS(SELECT 'x' FROM jobqueue t2 WHERE t2.dochash=t0.dochash AND
>>>> > t2.status
>>>> > IN ('A','F','a','f','D','d') AND t2.jobid!=t0.jobid) AND NOT
>>>> > EXISTS(SELECT
>>>> > 'x' FROM prereqevents t3,events t4 WHERE t0.id=t3.owner AND
>>>> > t3.eventname=t4.name) ORDER BY t0.docpriority ASC,t0.status
>>>> > ASC,t0.checkaction ASC,t0.checktime ASC LIMIT 1200
>>>> > *** (2) HOLDS THE LOCK(S):
>>>> > RECORD LOCKS space id 0 page no 221894 n bits 208 index `I1352346865065`
>>>> > of
>>>> > table `manifoldcf`.`jobqueue` trx id 6740DF lock mode S locks gap before
>>>> > rec
>>>> > Record lock, heap no 8 PHYSICAL RECORD: n_fields 3; compact format; info
>>>> > bits 0
>>>> > 0: len 30; hex
>>>> > 383834464239393738383632333242323331353041343031303337424444; asc
>>>> > 884FB997886232B23150A401037BDD; (total 40 bytes);
>>>> > 1: len 8; hex 8000013b2761a596; asc ;'a ;;
>>>> > 2: len 8; hex 8000013b27c4823b; asc ;' ;;;
>>>> >
>>>> > ...
>>>> > ...
>>>> > ...
>>>> >
>>>> > *** WE ROLL BACK TRANSACTION (1)
>>>> > ------------
>>>> > TRANSACTIONS
>>>> > ------------
>>>> > Trx id counter 6ACDF6
>>>> > Purge done for trx's n:o < 6752D1 undo n:o < 0
>>>> > History list length 485
>>>> > LIST OF TRANSACTIONS FOR EACH SESSION:
>>>> > ---TRANSACTION 0, not started
>>>> > MySQL thread id 5505, OS thread handle 0x7f7d210ec700, query id 25071245
>>>> > localhost root
>>>> > SHOW ENGINE INNODB STATUS
>>>> > ---TRANSACTION 6ACDF5, not started
>>>> > MySQL thread id 99, OS thread handle 0x7f7d4a356700, query id 25071244
>>>> > localhost 127.0.0.1 manifoldcf
>>>> > ...
>>>> >
>>>> > ------------------------------------------------------------------------------
>>>> >
>>>> >
>>>> >
>>>> >
>>>> > Regards,
>>>> >
>>>> > Shigeki
>>>> >
>>>> >
>>>> > 2012/10/19 Shigeki Kobayashi <shigeki.kobayas...@g.softbank.co.jp>
>>>> >>
>>>> >> Due to the error, I had to downgrade to a lower version so I haven't
>>>> >> found
>>>> >> the MySQL error code yet.
>>>> >>
>>>> >> I installed MCF1.0 in a different environment where crawlable contents
>>>> >> are
>>>> >> different from the above environment.
>>>> >> I could not reproduce the Database exception but socket timeout
>>>> >> occurred
>>>> >> In the same environment, I ran MCF0.6 and it completed crawling without
>>>> >> socket timeout.
>>>> >> Like you said, socket timeout　seems to be a different problem from the
>>>> >> Database exception .
>>>> >>
>>>> >> 2012/10/18 Karl Wright <daddy...@gmail.com>
>>>> >>>
>>>> >>> So, what was the resolution of this problem? Any news?
>>>> >>> Karl
>>>> >>>
>>>> >>> On Thu, Oct 11, 2012 at 2:28 AM, Karl Wright <daddy...@gmail.com>
>>>> >>> wrote:
>>>> >>> > The only change is that the MySQL driver now performs ANALYZE
>>>> >>> > operations on the fly in order to keep the database operating at
>>>> >>> > high
>>>> >>> > efficiency. This is CONNECTORS-510. It is possible that, on a
>>>> >>> > large
>>>> >>> > database table, these operations will cause others to wait long
>>>> >>> > enough
>>>> >>> > so that their timeout is exceeded. Such an event does not take
>>>> >>> > place
>>>> >>> > while the load tests run, however. If you want to turn off the
>>>> >>> > analyze operation, you can do that by setting a per-table property
>>>> >>> > to
>>>> >>> > override the analyze default of 10000 operations:
>>>> >>> >
>>>> >>> > analyzeThreshold =
>>>> >>> >
>>>> >>> >
>>>> >>> > ManifoldCF.getIntProperty("org.apache.manifold.db.mysql.analyze."+tableName,10000);
>>>> >>> >
>>>> >>> > The table in question is "jobqueue". If you set this value to
>>>> >>> > something like 1000000000 and you still see MySQL timeouts, then
>>>> >>> > this
>>>> >>> > new code is not the problem. And, like I said, the best solution is
>>>> >>> > to recognize the error and retry, but first I would need the error
>>>> >>> > code. Adding an appropriate output of sqlState around line 123 of
>>>> >>> >
>>>> >>> >
>>>> >>> > framework/core/src/main/java/org/apache/manifoldcf/core/database/DBInterfaceMySQL.java
>>>> >>> > would allow us to see what code to catch, when it happened again.
>>>> >>> >
>>>> >>> > For the Web connector, the only modifications have been in regards
>>>> >>> > to
>>>> >>> > how it handles 500 errors, which now correctly code to avoid an
>>>> >>> > IndexExceptionOutOfBounds exception. This has nothing to do with
>>>> >>> > socket exceptions, which are caused for external reasons only.
>>>> >>> >
>>>> >>> > Karl
>>>> >>> >
>>>> >>> >
>>>> >>> > On Wed, Oct 10, 2012 at 10:32 PM, Shigeki Kobayashi
>>>> >>> > <shigeki.kobayas...@g.softbank.co.jp> wrote:
>>>> >>> >> Hi Karl,
>>>> >>> >>
>>>> >>> >>
>>>> >>> >> I was comparing version 1.0 with old trunk based on version 0.6
>>>> >>> >> implementing
>>>> >>> >> CONNECTORS-501(
>>>> >>> >> Medium-scale web crawl with hopcount-based filtering fails to find
>>>> >>> >> correct
>>>> >>> >> number of documents).
>>>> >>> >>
>>>> >>> >> Running each version with the same MySQL setting and the same
>>>> >>> >> throttling,
>>>> >>> >> somehow the version 1.0 hangs with the error.
>>>> >>> >> Since the old trunk completes crawling, I wonder if something has
>>>> >>> >> changed.
>>>> >>> >>
>>>> >>> >> Just to make sure I will recheck if there are any wrong settings in
>>>> >>> >> MCF.
>>>> >>> >>
>>>> >>> >> Thanks.
>>>> >>> >>
>>>> >>> >> Regards,
>>>> >>> >>
>>>> >>> >> Shigeki
>>>> >>> >>
>>>> >>> >> 2012/10/10 Karl Wright <daddy...@gmail.com>
>>>> >>> >>>
>>>> >>> >>> Hi Shigeki,
>>>> >>> >>>
>>>> >>> >>> The socket timeout exception is only a warning. It means that
>>>> >>> >>> some
>>>> >>> >>> site you are crawling did not accept a socket connection within
>>>> >>> >>> the
>>>> >>> >>> allowed time (5 minutes I think). The Web Connector will retry
>>>> >>> >>> the
>>>> >>> >>> connection a few times, and if it is still rejected, it will
>>>> >>> >>> eventually give up on that page. One thing you want to check,
>>>> >>> >>> though,
>>>> >>> >>> is that you are using proper throttling, because if you aren't
>>>> >>> >>> then
>>>> >>> >>> one cause of this problem is that the webmaster of the site you
>>>> >>> >>> are
>>>> >>> >>> trying to crawl may have blocked you from accessing it.
>>>> >>> >>>
>>>> >>> >>> The database exception is more problematic. It means that MySQL
>>>> >>> >>> thinks it took too long for a specific transaction to complete,
>>>> >>> >>> and
>>>> >>> >>> the database aborted the transaction due to a timeout. There are
>>>> >>> >>> two
>>>> >>> >>> ways of dealing with this issue. One way is to modify your MySQL
>>>> >>> >>> configuration to increase the transaction timeout value to some
>>>> >>> >>> high
>>>> >>> >>> number. The second way is to modify ManifoldCF to recognize the
>>>> >>> >>> timeout error specifically, and cause a retry. But in order to do
>>>> >>> >>> the
>>>> >>> >>> latter, I would need to know what SQL error code MySQL returns for
>>>> >>> >>> this situation, which will mean we either need to look it up (if
>>>> >>> >>> we
>>>> >>> >>> can), or modify a ManifoldCF instance to log it when this problem
>>>> >>> >>> occurs.
>>>> >>> >>>
>>>> >>> >>> Please let me know how you would like to proceed.
>>>> >>> >>>
>>>> >>> >>> Karl
>>>> >>> >>>
>>>> >>> >>> On Wed, Oct 10, 2012 at 3:51 AM, Shigeki Kobayashi
>>>> >>> >>> <shigeki.kobayas...@g.softbank.co.jp> wrote:
>>>> >>> >>> >
>>>> >>> >>> > Hi
>>>> >>> >>> >
>>>> >>> >>> > I am having a trouble with crawling web using MCF1.0.
>>>> >>> >>> > I run MCF with MySQL 5.5 and Tomcat 6.0.
>>>> >>> >>> > It should keep crawling contents, but MCF prints the following
>>>> >>> >>> > Database
>>>> >>> >>> > exception log, then hangs.
>>>> >>> >>> > After DB Exception, Socket Time Exception occurs.
>>>> >>> >>> >
>>>> >>> >>> > Anyone has faced this problem?
>>>> >>> >>> >
>>>> >>> >>> > --Database Exception log:
>>>> >>> >>> >
>>>> >>> >>> > ERROR 2012-10-10 16:11:05,787 (Worker thread '42') - Worker
>>>> >>> >>> > thread
>>>> >>> >>> > aborting
>>>> >>> >>> > and restarting due to database connection reset: Database
>>>> >>> >>> > exception:
>>>> >>> >>> > Exception doing query: Lock wait timeout exceeded; try
>>>> >>> >>> > restarting
>>>> >>> >>> > transaction
>>>> >>> >>> > org.apache.manifoldcf.core.interfaces.ManifoldCFException:
>>>> >>> >>> > Database
>>>> >>> >>> > exception: Exception doing query: Lock wait timeout exceeded;
>>>> >>> >>> > try
>>>> >>> >>> > restarting
>>>> >>> >>> > transaction
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.core.database.Database.executeViaThread(Database.java:681)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.core.database.Database.executeUncachedQuery(Database.java:709)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.core.database.Database$QueryCacheExecutor.create(Database.java:1394)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.core.cachemanager.CacheManager.findObjectsAndExecute(CacheManager.java:144)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.core.database.Database.executeQuery(Database.java:186)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.core.database.DBInterfaceMySQL.performQuery(DBInterfaceMySQL.java:852)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.jobs.JobManager.addDocuments(JobManager.java:4089)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.system.WorkerThread$ProcessActivity.processDocumentReferences(WorkerThread.java:1932)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.system.WorkerThread$ProcessActivity.addDocumentReference(WorkerThread.java:1487)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.connectors.webcrawler.WebcrawlerConnector$ProcessActivityLinkHandler.noteDiscoveredLink(WebcrawlerConnector.java:6049)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.connectors.webcrawler.WebcrawlerConnector$ProcessAcivityHTMLHandler.noteAHREF(WebcrawlerConnector.java:6159)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.connectors.webcrawler.LinkParseState.noteNonscriptTag(LinkParseState.java:44)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.connectors.webcrawler.FormParseState.noteNonscriptTag(FormParseState.java:52)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.connectors.webcrawler.ScriptParseState.noteTag(ScriptParseState.java:50)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.connectors.webcrawler.BasicParseState.dealWithCharacter(BasicParseState.java:225)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.connectors.webcrawler.WebcrawlerConnector.handleHTML(WebcrawlerConnector.java:7047)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.connectors.webcrawler.WebcrawlerConnector.extractLinks(WebcrawlerConnector.java:6011)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.connectors.webcrawler.WebcrawlerConnector.processDocuments(WebcrawlerConnector.java:1282)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.connectors.BaseRepositoryConnector.processDocuments(BaseRepositoryConnector.java:423)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.system.WorkerThread.run(WorkerThread.java:551)
>>>> >>> >>> > Caused by: java.sql.SQLException: Lock wait timeout exceeded;
>>>> >>> >>> > try
>>>> >>> >>> > restarting
>>>> >>> >>> > transaction
>>>> >>> >>> > at
>>>> >>> >>> > com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
>>>> >>> >>> > at
>>>> >>> >>> > com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3609)
>>>> >>> >>> > at
>>>> >>> >>> > com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3541)
>>>> >>> >>> > at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2002)
>>>> >>> >>> > at
>>>> >>> >>> > com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2163)
>>>> >>> >>> > at
>>>> >>> >>> > com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2624)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2127)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2293)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.core.database.Database.execute(Database.java:826)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.core.database.Database$ExecuteQueryThread.run(Database.java:641)
>>>> >>> >>> > ERROR 2012-10-10 16:11:06,799 (Worker thread '9') - Worker
>>>> >>> >>> > thread
>>>> >>> >>> > aborting
>>>> >>> >>> > and restarting due to database connection reset: Database
>>>> >>> >>> > exception:
>>>> >>> >>> > Exception doing query: Lock wait timeout exceeded; try
>>>> >>> >>> > restarting
>>>> >>> >>> > transaction
>>>> >>> >>> > org.apache.manifoldcf.core.interfaces.ManifoldCFException:
>>>> >>> >>> > Database
>>>> >>> >>> > exception: Exception doing query: Lock wait timeout exceeded;
>>>> >>> >>> > try
>>>> >>> >>> > restarting
>>>> >>> >>> > transaction
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.core.database.Database.executeViaThread(Database.java:681)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.core.database.Database.executeUncachedQuery(Database.java:709)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.core.database.Database$QueryCacheExecutor.create(Database.java:1394)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.core.cachemanager.CacheManager.findObjectsAndExecute(CacheManager.java:144)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.core.database.Database.executeQuery(Database.java:186)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.core.database.DBInterfaceMySQL.performQuery(DBInterfaceMySQL.java:852)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.jobs.JobManager.addDocuments(JobManager.java:4089)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.system.WorkerThread$ProcessActivity.processDocumentReferences(WorkerThread.java:1932)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.system.WorkerThread$ProcessActivity.flush(WorkerThread.java:1863)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.system.WorkerThread.run(WorkerThread.java:554)
>>>> >>> >>> > Caused by: java.sql.SQLException: Lock wait timeout exceeded;
>>>> >>> >>> > try
>>>> >>> >>> > restarting
>>>> >>> >>> > transaction
>>>> >>> >>> > at
>>>> >>> >>> > com.mysql.jdbc.SQLError.createSQLException(SQLError.java:1073)
>>>> >>> >>> > at
>>>> >>> >>> > com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3609)
>>>> >>> >>> > at
>>>> >>> >>> > com.mysql.jdbc.MysqlIO.checkErrorPacket(MysqlIO.java:3541)
>>>> >>> >>> > at com.mysql.jdbc.MysqlIO.sendCommand(MysqlIO.java:2002)
>>>> >>> >>> > at
>>>> >>> >>> > com.mysql.jdbc.MysqlIO.sqlQueryDirect(MysqlIO.java:2163)
>>>> >>> >>> > at
>>>> >>> >>> > com.mysql.jdbc.ConnectionImpl.execSQL(ConnectionImpl.java:2624)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > com.mysql.jdbc.PreparedStatement.executeInternal(PreparedStatement.java:2127)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > com.mysql.jdbc.PreparedStatement.executeQuery(PreparedStatement.java:2293)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.core.database.Database.execute(Database.java:826)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.core.database.Database$ExecuteQueryThread.run(Database.java:641)
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > ---- Socket Timeout:
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > DEBUG 2012-10-10 16:16:27,256 (Worker thread '49') - Socket
>>>> >>> >>> > timeout
>>>> >>> >>> > exception trying to close connection: Read timed out
>>>> >>> >>> > java.net.SocketTimeoutException: Read timed out
>>>> >>> >>> > at java.net.SocketInputStream.socketRead0(Native Method)
>>>> >>> >>> > at
>>>> >>> >>> > java.net.SocketInputStream.read(SocketInputStream.java:129)
>>>> >>> >>> > at
>>>> >>> >>> > java.io.BufferedInputStream.fill(BufferedInputStream.java:218)
>>>> >>> >>> > at
>>>> >>> >>> > java.io.BufferedInputStream.read1(BufferedInputStream.java:258)
>>>> >>> >>> > at
>>>> >>> >>> > java.io.BufferedInputStream.read(BufferedInputStream.java:317)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> > org.apache.commons.httpclient.ContentLengthInputStream.read(Unknown
>>>> >>> >>> > Source)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> > org.apache.commons.httpclient.ContentLengthInputStream.read(Unknown
>>>> >>> >>> > Source)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.commons.httpclient.ChunkedInputStream.exhaustInputStream(Unknown
>>>> >>> >>> > Source)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.commons.httpclient.ContentLengthInputStream.close(Unknown
>>>> >>> >>> > Source)
>>>> >>> >>> > at
>>>> >>> >>> > java.io.FilterInputStream.close(FilterInputStream.java:155)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.commons.httpclient.AutoCloseInputStream.notifyWatcher(Unknown
>>>> >>> >>> > Source)
>>>> >>> >>> > at
>>>> >>> >>> > org.apache.commons.httpclient.AutoCloseInputStream.close(Unknown
>>>> >>> >>> > Source)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.connectors.webcrawler.ThrottledFetcher$ThrottledInputstream.close(ThrottledFetcher.java:2082)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.connectors.webcrawler.DataCache.addData(DataCache.java:176)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.connectors.webcrawler.WebcrawlerConnector.getDocumentVersions(WebcrawlerConnector.java:745)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.system.WorkerThread.run(WorkerThread.java:321)
>>>> >>> >>> > INFO 2012-10-10 16:16:27,273 (Worker thread '49') - WEB: FETCH
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > URL|http://xxxxxx/...|1349852786744+600514|-104|4125|org.apache.manifoldcf.core.interfaces.ManifoldCFException|
>>>> >>> >>> > Interrupted: Socket timeout: Read timed out
>>>> >>> >>> > DEBUG 2012-10-10 16:16:27,273 (Worker thread '49') - WEB: Fetch
>>>> >>> >>> > exception
>>>> >>> >>> > for 'http://xxxxxx/...'
>>>> >>> >>> > org.apache.manifoldcf.core.interfaces.ManifoldCFException:
>>>> >>> >>> > Interrupted:
>>>> >>> >>> > Socket timeout: Read timed out
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.connectors.webcrawler.ThrottledFetcher$ThrottledConnection.noteInterrupted(ThrottledFetcher.java:1818)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.connectors.webcrawler.WebcrawlerConnector.getDocumentVersions(WebcrawlerConnector.java:797)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.system.WorkerThread.run(WorkerThread.java:321)
>>>> >>> >>> > Caused by:
>>>> >>> >>> > org.apache.manifoldcf.agents.interfaces.ServiceInterruption:
>>>> >>> >>> > Socket timeout: Read timed out
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.connectors.webcrawler.DataCache.addData(DataCache.java:101)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.connectors.webcrawler.WebcrawlerConnector.getDocumentVersions(WebcrawlerConnector.java:745)
>>>> >>> >>> > ... 1 more
>>>> >>> >>> > Caused by: java.net.SocketTimeoutException: Read timed out
>>>> >>> >>> > at java.net.SocketInputStream.socketRead0(Native Method)
>>>> >>> >>> > at
>>>> >>> >>> > java.net.SocketInputStream.read(SocketInputStream.java:129)
>>>> >>> >>> > at
>>>> >>> >>> > java.io.BufferedInputStream.read1(BufferedInputStream.java:256)
>>>> >>> >>> > at
>>>> >>> >>> > java.io.BufferedInputStream.read(BufferedInputStream.java:317)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> > org.apache.commons.httpclient.ContentLengthInputStream.read(Unknown
>>>> >>> >>> > Source)
>>>> >>> >>> > at
>>>> >>> >>> > java.io.FilterInputStream.read(FilterInputStream.java:116)
>>>> >>> >>> > at
>>>> >>> >>> > org.apache.commons.httpclient.AutoCloseInputStream.read(Unknown
>>>> >>> >>> > Source)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.connectors.webcrawler.ThrottledFetcher$ThrottledInputstream.basicRead(ThrottledFetcher.java:2012)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.connectors.webcrawler.ThrottledFetcher$ThrottledInputstream.read(ThrottledFetcher.java:1976)
>>>> >>> >>> > at
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > org.apache.manifoldcf.crawler.connectors.webcrawler.DataCache.addData(DataCache.java:95)
>>>> >>> >>> > ... 2 more
>>>> >>> >>> > WARN 2012-10-10 16:16:27,274 (Worker thread '49') - Pre-ingest
>>>> >>> >>> > service
>>>> >>> >>> > interruption reported for job 1349774325961 connection 'WEB':
>>>> >>> >>> > Socket
>>>> >>> >>> > timeout: Read timed out
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> >
>>>> >>> >>> > Regards,
>>>> >>> >>> >
>>>> >>> >>> > Shigeki
>>>> >>> >>
>>>> >>> >>
>>>> >>> >>
>>>> >>> >>
>>>> >>
>>>> >>
>>>> >>
>>>> >>
>>>> >
>>>> >
>>>> >
>>>
>>>
>>>
>>>
