[jira] [Commented] (DRILL-7953) Query failed with (Too many open files)

["Cong Luo (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/DRILL-7953?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17373420#comment-17373420 ] 

Cong Luo commented on DRILL-7953:
---------------------------------

[~dony.dong] Hi, I think the issues has already been resolved after the release 1.17.

> Query failed with (Too many open files)
> ---------------------------------------
>
>                 Key: DRILL-7953
>                 URL: https://issues.apache.org/jira/browse/DRILL-7953
>             Project: Apache Drill
>          Issue Type: Bug
>          Components:  Server
>    Affects Versions: 1.15.0
>            Reporter: Dony Dong
>            Priority: Major
>
> Hi Support,
>  
> When we query a complex view that will access a lot of parquet files, the query failed with error,  
> Caused by: org.apache.drill.common.exceptions.ExecutionSetupException: Error opening or reading metadata for parquet file at location: part-00006-df5fe7db-6086-43a3-9575-1b18c140b5e6-c000.snappy.parquet
>  at org.apache.drill.exec.store.parquet.columnreaders.PageReader.<init>(PageReader.java:151) ~[drill-java-exec-1.15.0.jar:1.15.0]
>  at org.apache.drill.exec.store.parquet.columnreaders.AsyncPageReader.<init>(AsyncPageReader.java:97) ~[drill-java-exec-1.15.0.jar:1.15.0]
>  at org.apache.drill.exec.store.parquet.columnreaders.ColumnReader.<init>(ColumnReader.java:100) ~[drill-java-exec-1.15.0.jar:1.15.0]
>  at org.apache.drill.exec.store.parquet.columnreaders.NullableColumnReader.<init>(NullableColumnReader.java:43) ~[drill-java-exec-1.15.0.jar:1.15.0]
>  at org.apache.drill.exec.store.parquet.columnreaders.NullableFixedByteAlignedReaders$NullableFixedByteAlignedReader.<init>(NullableFixedByteAlignedReaders.java:54) ~[drill-java-exec-1.15.0.jar:1.15.0]
>  at org.apache.drill.exec.store.parquet.columnreaders.NullableFixedByteAlignedReaders$NullableConvertedReader.<init>(NullableFixedByteAlignedReaders.java:328) ~[drill-java-exec-1.15.0.jar:1.15.0]
>  at org.apache.drill.exec.store.parquet.columnreaders.NullableFixedByteAlignedReaders$NullableDateReader.<init>(NullableFixedByteAlignedReaders.java:348) ~[drill-java-exec-1.15.0.jar:1.15.0]
>  at org.apache.drill.exec.store.parquet.columnreaders.ColumnReaderFactory.createFixedColumnReader(ColumnReaderFactory.java:185) ~[drill-java-exec-1.15.0.jar:1.15.0]
>  at org.apache.drill.exec.store.parquet.columnreaders.ParquetColumnMetadata.makeFixedWidthReader(ParquetColumnMetadata.java:141) ~[drill-java-exec-1.15.0.jar:1.15.0]
>  at org.apache.drill.exec.store.parquet.columnreaders.ReadState.buildReader(ReadState.java:123) ~[drill-java-exec-1.15.0.jar:1.15.0]
>  at org.apache.drill.exec.store.parquet.columnreaders.ParquetRecordReader.setup(ParquetRecordReader.java:253) ~[drill-java-exec-1.15.0.jar:1.15.0]
>  ... 29 common frames omitted
> Caused by: java.io.FileNotFoundException: /data/testing/CH/part-00006-df5fe7db-6086-43a3-9575-1b18c140b5e6-c000.snappy.parquet (Too many open files)
>  at java.io.FileInputStream.open0(Native Method) ~[na:1.8.0_181]
>  at java.io.FileInputStream.open(FileInputStream.java:195) ~[na:1.8.0_181]
>  at java.io.FileInputStream.<init>(FileInputStream.java:138) ~[na:1.8.0_181]
>  at org.apache.hadoop.fs.RawLocalFileSystem$LocalFSFileInputStream.<init>(RawLocalFileSystem.java:106) ~[hadoop-common-2.7.4.jar:na]
>  at org.apache.hadoop.fs.RawLocalFileSystem.open(RawLocalFileSystem.java:202) ~[hadoop-common-2.7.4.jar:na]
>  at org.apache.hadoop.fs.ChecksumFileSystem$ChecksumFSInputChecker.<init>(ChecksumFileSystem.java:143) ~[hadoop-common-2.7.4.jar:na]
>  at org.apache.hadoop.fs.ChecksumFileSystem.open(ChecksumFileSystem.java:346) ~[hadoop-common-2.7.4.jar:na]
>  at org.apache.hadoop.fs.FileSystem.open(FileSystem.java:769) ~[hadoop-common-2.7.4.jar:na]
>  at org.apache.drill.exec.store.dfs.DrillFileSystem.open(DrillFileSystem.java:151) ~[drill-java-exec-1.15.0.jar:1.15.0]
>  at org.apache.drill.exec.store.parquet.columnreaders.PageReader.<init>(PageReader.java:133) ~[drill-java-exec-1.15.0.jar:1.15.0]
>  ... 39 common frames omitted
>  
> We add below in the /etc/security/limits.conf, but Drill still uses the default setting 1024 when startup. 
> * hard nofile 65536
> * soft nofile 65536
>  
> Fri Jun 18 19:40:33 AEST 2021 Starting drillbit on drill-testing
> core file size (blocks, -c) 0
> data seg size (kbytes, -d) unlimited
> scheduling priority (-e) 0
> file size (blocks, -f) unlimited
> pending signals (-i) 740731
> max locked memory (kbytes, -l) 64
> max memory size (kbytes, -m) unlimited
> open files (-n) 1024
> pipe size (512 bytes, -p) 8
> POSIX message queues (bytes, -q) 819200
> real-time priority (-r) 0
> stack size (kbytes, -s) 8192
> cpu time (seconds, -t) unlimited
> max user processes (-u) 740731
> virtual memory (kbytes, -v) unlimited
> file locks (-x) unlimited
>  
> is there some place we can set this parameter?
>  
>  
>  



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