[
https://issues.apache.org/jira/browse/CASSANDRA-14136?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Aditya Bharadwaj updated CASSANDRA-14136:
-----------------------------------------
Description:
Running into this issue on my cluster periodically for different tables. After
this error is encountered, all the post flushes stop and eventually the system
runs out of memory.
On a restart all the commit logs get played normally and things go back to
normal.
I'm unable to understand the scenario, but the issue is recreating every few
days.
bq. {{quote}DEBUG [MemtableFlushWriter:884] 2017-12-26 18:19:40,883
Memtable.java:401 - Completed flushing
/mnt/DATA/cassandra/data/martjack/products_by_hierarchy5storeid_pascdesc-411cabe0632411e7b25a1b665c06298b/.id
bq. x_hierarchy1category/mc-2050-big-Data.db (508.127KiB) for commitlog
position ReplayPosition(segmentId=1513929386900,
bq. position=19110822)
bq. DEBUG [MemtableFlushWriter:884] 2017-12-26 18:19:41,150 Memtable.java:368 -
Writing
Memtable-products_by_hierarchy5storeid_pascdesc.idx_hierarchy3category@551487729(545.926KiB
serialized bytes, 324073 ops, 0%/0% of on/off-heap limit)
bq. ERROR [MemtableFlushWriter:884] 2017-12-26 18:19:41,316
CassandraDaemon.java:205 - Exception in thread
Thread[MemtableFlushWriter:884,5,main]
bq. java.lang.RuntimeException: Last written key DecoratedKey(CU00328612,
43553030333238363132) >= current key DecoratedKey(^@^@^@^@^@^@^@^@^@^@,
43553030333238363838) writing into
/mnt/DATA/cassandra/data/martjack/products_by_hierarchy5storeid_pascdesc-411cabe0632411e7b25a1b665c06298b/.idx_hierarchy3category/mc-2134-big-Data.db
bq. at
org.apache.cassandra.io.sstable.format.big.BigTableWriter.beforeAppend(BigTableWriter.java:106)
~[apache-cassandra-3.0.9.jar:3.0.9]
bq. at
org.apache.cassandra.io.sstable.format.big.BigTableWriter.append(BigTableWriter.java:145)
~[apache-cassandra-3.0.9.jar:3.0.9]
bq. at
org.apache.cassandra.io.sstable.SimpleSSTableMultiWriter.append(SimpleSSTableMultiWriter.java:45)
~[apache-cassandra-3.0.9.jar:3.0.9]
bq. at
org.apache.cassandra.io.sstable.SSTableTxnWriter.append(SSTableTxnWriter.java:52)
~[apache-cassandra-3.0.9.jar:3.0.9]
bq. at
org.apache.cassandra.db.Memtable.writeSortedContents(Memtable.java:394)
~[apache-cassandra-3.0.9.jar:3.0.9]
bq. at org.apache.cassandra.db.Memtable.flush(Memtable.java:332)
~[apache-cassandra-3.0.9.jar:3.0.9]
bq. at
org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFamilyStore.java:1054)
~[apache-cassandra-3.0.9.jar:3.0.9]
bq. at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
~[na:1.8.0_112]
bq. at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
~[na:1.8.0_112]
bq. at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_112]
bq. }
was:
Running into this issue on my cluster periodically for different tables. After
this error is encountered, all the post flushes stop and eventually the system
runs out of memory.
On a restart all the commit logs get played normally and things go back to
normal.
I'm unable to understand the scenario, but the issue is recreating every few
days.
bq. {{{quote}DEBUG [MemtableFlushWriter:884] 2017-12-26 18:19:40,883
Memtable.java:401 - Completed flushing
/mnt/DATA/cassandra/data/martjack/products_by_hierarchy5storeid_pascdesc-411cabe0632411e7b25a1b665c06298b/.id
bq. x_hierarchy1category/mc-2050-big-Data.db (508.127KiB) for commitlog
position ReplayPosition(segmentId=1513929386900,
bq. position=19110822)
bq. DEBUG [MemtableFlushWriter:884] 2017-12-26 18:19:41,150 Memtable.java:368 -
Writing
Memtable-products_by_hierarchy5storeid_pascdesc.idx_hierarchy3category@551487729(545.926KiB
serialized bytes, 324073 ops, 0%/0% of on/off-heap limit)
bq. ERROR [MemtableFlushWriter:884] 2017-12-26 18:19:41,316
CassandraDaemon.java:205 - Exception in thread
Thread[MemtableFlushWriter:884,5,main]
bq. java.lang.RuntimeException: Last written key DecoratedKey(CU00328612,
43553030333238363132) >= current key DecoratedKey(^@^@^@^@^@^@^@^@^@^@,
43553030333238363838) writing into
/mnt/DATA/cassandra/data/martjack/products_by_hierarchy5storeid_pascdesc-411cabe0632411e7b25a1b665c06298b/.idx_hierarchy3category/mc-2134-big-Data.db
bq. at
org.apache.cassandra.io.sstable.format.big.BigTableWriter.beforeAppend(BigTableWriter.java:106)
~[apache-cassandra-3.0.9.jar:3.0.9]
bq. at
org.apache.cassandra.io.sstable.format.big.BigTableWriter.append(BigTableWriter.java:145)
~[apache-cassandra-3.0.9.jar:3.0.9]
bq. at
org.apache.cassandra.io.sstable.SimpleSSTableMultiWriter.append(SimpleSSTableMultiWriter.java:45)
~[apache-cassandra-3.0.9.jar:3.0.9]
bq. at
org.apache.cassandra.io.sstable.SSTableTxnWriter.append(SSTableTxnWriter.java:52)
~[apache-cassandra-3.0.9.jar:3.0.9]
bq. at
org.apache.cassandra.db.Memtable.writeSortedContents(Memtable.java:394)
~[apache-cassandra-3.0.9.jar:3.0.9]
bq. at org.apache.cassandra.db.Memtable.flush(Memtable.java:332)
~[apache-cassandra-3.0.9.jar:3.0.9]
bq. at
org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFamilyStore.java:1054)
~[apache-cassandra-3.0.9.jar:3.0.9]
bq. at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
~[na:1.8.0_112]
bq. at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
~[na:1.8.0_112]
bq. at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_112]
bq. {quote}}}
> MemtableFlushWriter DecoratedKey Exception
> ------------------------------------------
>
> Key: CASSANDRA-14136
> URL: https://issues.apache.org/jira/browse/CASSANDRA-14136
> Project: Cassandra
> Issue Type: Bug
> Components: Compaction
> Environment: CentOS Linux release 7.3.1611 (Core) , 3 Node cluster
> with Replication Factor or 2
> Reporter: Aditya Bharadwaj
> Labels: beginner
> Fix For: 3.0.11
>
> Attachments: debug.log.gz, system.log.gz
>
>
> Running into this issue on my cluster periodically for different tables.
> After this error is encountered, all the post flushes stop and eventually the
> system runs out of memory.
> On a restart all the commit logs get played normally and things go back to
> normal.
> I'm unable to understand the scenario, but the issue is recreating every few
> days.
> bq. {{quote}DEBUG [MemtableFlushWriter:884] 2017-12-26 18:19:40,883
> Memtable.java:401 - Completed flushing
> /mnt/DATA/cassandra/data/martjack/products_by_hierarchy5storeid_pascdesc-411cabe0632411e7b25a1b665c06298b/.id
> bq. x_hierarchy1category/mc-2050-big-Data.db (508.127KiB) for commitlog
> position ReplayPosition(segmentId=1513929386900,
> bq. position=19110822)
> bq. DEBUG [MemtableFlushWriter:884] 2017-12-26 18:19:41,150 Memtable.java:368
> - Writing
> Memtable-products_by_hierarchy5storeid_pascdesc.idx_hierarchy3category@551487729(545.926KiB
> serialized bytes, 324073 ops, 0%/0% of on/off-heap limit)
> bq. ERROR [MemtableFlushWriter:884] 2017-12-26 18:19:41,316
> CassandraDaemon.java:205 - Exception in thread
> Thread[MemtableFlushWriter:884,5,main]
> bq. java.lang.RuntimeException: Last written key DecoratedKey(CU00328612,
> 43553030333238363132) >= current key DecoratedKey(^@^@^@^@^@^@^@^@^@^@,
> 43553030333238363838) writing into
> /mnt/DATA/cassandra/data/martjack/products_by_hierarchy5storeid_pascdesc-411cabe0632411e7b25a1b665c06298b/.idx_hierarchy3category/mc-2134-big-Data.db
> bq. at
> org.apache.cassandra.io.sstable.format.big.BigTableWriter.beforeAppend(BigTableWriter.java:106)
> ~[apache-cassandra-3.0.9.jar:3.0.9]
> bq. at
> org.apache.cassandra.io.sstable.format.big.BigTableWriter.append(BigTableWriter.java:145)
> ~[apache-cassandra-3.0.9.jar:3.0.9]
> bq. at
> org.apache.cassandra.io.sstable.SimpleSSTableMultiWriter.append(SimpleSSTableMultiWriter.java:45)
> ~[apache-cassandra-3.0.9.jar:3.0.9]
> bq. at
> org.apache.cassandra.io.sstable.SSTableTxnWriter.append(SSTableTxnWriter.java:52)
> ~[apache-cassandra-3.0.9.jar:3.0.9]
> bq. at
> org.apache.cassandra.db.Memtable.writeSortedContents(Memtable.java:394)
> ~[apache-cassandra-3.0.9.jar:3.0.9]
> bq. at org.apache.cassandra.db.Memtable.flush(Memtable.java:332)
> ~[apache-cassandra-3.0.9.jar:3.0.9]
> bq. at
> org.apache.cassandra.db.ColumnFamilyStore$Flush.run(ColumnFamilyStore.java:1054)
> ~[apache-cassandra-3.0.9.jar:3.0.9]
> bq. at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> ~[na:1.8.0_112]
> bq. at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> ~[na:1.8.0_112]
> bq. at java.lang.Thread.run(Thread.java:745) ~[na:1.8.0_112]
> bq. }
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