# Multiline codec and csv filter performance

**URL:** <https://discuss.elastic.co/t/multiline-codec-and-csv-filter-performance/310383>\
**Category:** Logstash\
**Created:** [July 22, 2022, 10:16am UTC](https://discuss.elastic.co/t/multiline-codec-and-csv-filter-performance/310383 "2022-07-22T10:16:40Z")\
**Posts on this page:** 1\
**Showing post:** 3

<div class="post-metadata">

**Author:** ![INS](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ins/32/92827_2.png) [@INS](https://discuss.elastic.co/u/INS)\
**Post date:** [July 22, 2022, 7:51pm UTC](https://discuss.elastic.co/t/multiline-codec-and-csv-filter-performance/310383/3 "2022-07-22T19:51:54Z")

</div>

Hi @leandrojmp this is the mentioned [pipeline](https://discuss.elastic.co/t/csv-plugin-cooperating-with-multiplying-pattern/309865/10)  
it was crazy but I tried to use even 65 GB heap size  
size and ended up failing (memory leak), of course.

```auto

warning: thread "[npdb]>worker38" terminated with exception (report_on_exception is true):warning: thread "[npdb]>worker26" terminated with exception (report_on_exception is true):

java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space
        at java.util.ArrayList.<init>(java/util/ArrayList.java:154)
        at org.logstash.common.LsQueueUtils.drain(org/logstash/common/LsQueueUtils.java:78)
        at org.logstash.ext.JrubyMemoryReadClientExt.readBatch(org/logstash/ext/JrubyMemoryReadClientExt.java:83)
        at org.logstash.execution.WorkerLoop.run(org/logstash/execution/WorkerLoop.java:82)
        at jdk.internal.reflect.GeneratedMethodAccessor62.invoke(jdk/internal/reflect/GeneratedMethodAccessor62)
        at jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(jdk/internal/reflect/DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(java/lang/reflect/Method.java:566)
        at org.jruby.javasupport.JavaMethod.invokeDirectWithExceptionHandling(org/jruby/javasupport/JavaMethod.java:441)
        at org.jruby.javasupport.JavaMethod.invokeDirect(org/jruby/javasupport/JavaMethod.java:305)
        at java.lang.invoke.LambdaForm$DMH/0x00007f167d5c9440.invokeVirtual(java/lang/invoke/LambdaForm$DMH)
        at java.lang.invoke.LambdaForm$MH/0x00007f167d5c7440.invoke(java/lang/invoke/LambdaForm$MH)
        at java.lang.invoke.LambdaForm$MH/0x00007f167d5c5c40.reinvoke(java/lang/invoke/LambdaForm$MH)
        at java.lang.invoke.LambdaForm$MH/0x00007f167d5c5440.guard(java/lang/invoke/LambdaForm$MH)
        at java.lang.invoke.LambdaForm$MH/0x00007f167d5c5c40.reinvoke(java/lang/invoke/LambdaForm$MH)
        at java.lang.invoke.LambdaForm$MH/0x00007f167d5c5440.guard(java/lang/invoke/LambdaForm$MH)
        at java.lang.invoke.Invokers$Holder.linkToCallSite(java/lang/invoke/Invokers$Holder)
        at usr.share.logstash.logstash_minus_core.lib.logstash.java_pipeline.start_workers(/usr/share/logstash/logstash-core/lib/logstash/java_pipeline.rb:300)
        at java.lang.invoke.DirectMethodHandle$Holder.invokeStatic(java/lang/invoke/DirectMethodHandle$Holder)
        at java.lang.invoke.LambdaForm$MH/0x00007f163ab0a440.invoke(java/lang/invoke/LambdaForm$MH)
        at java.lang.invoke.Invokers$Holder.invokeExact_MT(java/lang/invoke/Invokers$Holder)
        at org.jruby.RubyProc.call(org/jruby/RubyProc.java:318)
        at java.lang.Thread.run(java/lang/Thread.java:829)
warning: thread "Ruby-0-Thread-134: :1" terminated with exception (report_on_exception is true):
warning: thread "Ruby-0-Thread-136: :1" terminated with exception (report_on_exception is true):warning: thread "Ruby-0-Thread-147: :1" terminated with exception (report_on_exception is true):

```

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