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From "Carl Yeksigian (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-9285) LEAK DETECTED in sstwriter
Date Tue, 27 Oct 2015 14:29:28 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-9285?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Carl Yeksigian updated CASSANDRA-9285:
--------------------------------------
    Assignee:     (was: Carl Yeksigian)

> LEAK DETECTED in sstwriter
> --------------------------
>
>                 Key: CASSANDRA-9285
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-9285
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Pierre N.
>             Fix For: 2.1.x
>
>
> reproduce bug : 
> {code}
>     public static void main(String[] args) throws Exception {
>         System.setProperty("cassandra.debugrefcount","true");
>         
>         String ks = "ks1";
>         String table = "t1";
>         
>         String schema = "CREATE TABLE " + ks + "." + table + "(a1 INT, PRIMARY KEY (a1));";
>         String insert = "INSERT INTO "+ ks + "." + table + "(a1) VALUES(?);";
>         
>         File dir = new File("/var/tmp/" + ks + "/" + table);
>         dir.mkdirs();
>         
>         CQLSSTableWriter writer = CQLSSTableWriter.builder().forTable(schema).using(insert).inDirectory(dir).build();
>         
>         writer.addRow(1);
>         writer.close();
>         writer = null;
>         
>         Thread.sleep(1000);System.gc();
>         Thread.sleep(1000);System.gc();
>     }
> {code}
> {quote}
> [2015-05-01 16:09:59,139] [Reference-Reaper:1] ERROR org.apache.cassandra.utils.concurrent.Ref
- LEAK DETECTED: a reference (org.apache.cassandra.utils.concurrent.Ref$State@79fa9da9) to
class org.apache.cassandra.io.util.SafeMemory$MemoryTidy@2053866990:Memory@[7f87f8043b20..7f87f8043b48)
was not released before the reference was garbage collected
> [2015-05-01 16:09:59,143] [Reference-Reaper:1] ERROR org.apache.cassandra.utils.concurrent.Ref
- Allocate trace org.apache.cassandra.utils.concurrent.Ref$State@79fa9da9:
> Thread[Thread-2,5,main]
> 	at java.lang.Thread.getStackTrace(Thread.java:1552)
> 	at org.apache.cassandra.utils.concurrent.Ref$Debug.<init>(Ref.java:200)
> 	at org.apache.cassandra.utils.concurrent.Ref$State.<init>(Ref.java:133)
> 	at org.apache.cassandra.utils.concurrent.Ref.<init>(Ref.java:60)
> 	at org.apache.cassandra.io.util.SafeMemory.<init>(SafeMemory.java:32)
> 	at org.apache.cassandra.io.util.SafeMemoryWriter.<init>(SafeMemoryWriter.java:33)
> 	at org.apache.cassandra.io.sstable.IndexSummaryBuilder.<init>(IndexSummaryBuilder.java:111)
> 	at org.apache.cassandra.io.sstable.SSTableWriter$IndexWriter.<init>(SSTableWriter.java:576)
> 	at org.apache.cassandra.io.sstable.SSTableWriter.<init>(SSTableWriter.java:140)
> 	at org.apache.cassandra.io.sstable.AbstractSSTableSimpleWriter.getWriter(AbstractSSTableSimpleWriter.java:58)
> 	at org.apache.cassandra.io.sstable.SSTableSimpleUnsortedWriter$DiskWriter.run(SSTableSimpleUnsortedWriter.java:227)
> [2015-05-01 16:09:59,144] [Reference-Reaper:1] ERROR org.apache.cassandra.utils.concurrent.Ref
- LEAK DETECTED: a reference (org.apache.cassandra.utils.concurrent.Ref$State@664382e3) to
class org.apache.cassandra.io.util.SafeMemory$MemoryTidy@899100784:Memory@[7f87f8043990..7f87f8043994)
was not released before the reference was garbage collected
> [2015-05-01 16:09:59,144] [Reference-Reaper:1] ERROR org.apache.cassandra.utils.concurrent.Ref
- Allocate trace org.apache.cassandra.utils.concurrent.Ref$State@664382e3:
> Thread[Thread-2,5,main]
> 	at java.lang.Thread.getStackTrace(Thread.java:1552)
> 	at org.apache.cassandra.utils.concurrent.Ref$Debug.<init>(Ref.java:200)
> 	at org.apache.cassandra.utils.concurrent.Ref$State.<init>(Ref.java:133)
> 	at org.apache.cassandra.utils.concurrent.Ref.<init>(Ref.java:60)
> 	at org.apache.cassandra.io.util.SafeMemory.<init>(SafeMemory.java:32)
> 	at org.apache.cassandra.io.util.SafeMemoryWriter.<init>(SafeMemoryWriter.java:33)
> 	at org.apache.cassandra.io.sstable.IndexSummaryBuilder.<init>(IndexSummaryBuilder.java:110)
> 	at org.apache.cassandra.io.sstable.SSTableWriter$IndexWriter.<init>(SSTableWriter.java:576)
> 	at org.apache.cassandra.io.sstable.SSTableWriter.<init>(SSTableWriter.java:140)
> 	at org.apache.cassandra.io.sstable.AbstractSSTableSimpleWriter.getWriter(AbstractSSTableSimpleWriter.java:58)
> 	at org.apache.cassandra.io.sstable.SSTableSimpleUnsortedWriter$DiskWriter.run(SSTableSimpleUnsortedWriter.java:227)
> [2015-05-01 16:09:59,144] [Reference-Reaper:1] ERROR org.apache.cassandra.utils.concurrent.Ref
- LEAK DETECTED: a reference (org.apache.cassandra.utils.concurrent.Ref$State@3cca0ac2) to
class org.apache.cassandra.io.util.SafeMemory$MemoryTidy@499043670:Memory@[7f87f8039940..7f87f8039c60)
was not released before the reference was garbage collected
> [2015-05-01 16:09:59,144] [Reference-Reaper:1] ERROR org.apache.cassandra.utils.concurrent.Ref
- Allocate trace org.apache.cassandra.utils.concurrent.Ref$State@3cca0ac2:
> Thread[Thread-2,5,main]
> 	at java.lang.Thread.getStackTrace(Thread.java:1552)
> 	at org.apache.cassandra.utils.concurrent.Ref$Debug.<init>(Ref.java:200)
> 	at org.apache.cassandra.utils.concurrent.Ref$State.<init>(Ref.java:133)
> 	at org.apache.cassandra.utils.concurrent.Ref.<init>(Ref.java:60)
> 	at org.apache.cassandra.io.util.SafeMemory.<init>(SafeMemory.java:32)
> 	at org.apache.cassandra.io.compress.CompressionMetadata$Writer.<init>(CompressionMetadata.java:274)
> 	at org.apache.cassandra.io.compress.CompressionMetadata$Writer.open(CompressionMetadata.java:285)
> 	at org.apache.cassandra.io.compress.CompressedSequentialWriter.<init>(CompressedSequentialWriter.java:74)
> 	at org.apache.cassandra.io.util.SequentialWriter.open(SequentialWriter.java:124)
> 	at org.apache.cassandra.io.sstable.SSTableWriter.<init>(SSTableWriter.java:129)
> 	at org.apache.cassandra.io.sstable.AbstractSSTableSimpleWriter.getWriter(AbstractSSTableSimpleWriter.java:58)
> 	at org.apache.cassandra.io.sstable.SSTableSimpleUnsortedWriter$DiskWriter.run(SSTableSimpleUnsortedWriter.java:227)
> {quote}



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