dfs client -ls/-lsr outofmemory when one directory contained 2 million files.
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Key: HADOOP-2544
URL: https://issues.apache.org/jira/browse/HADOOP-2544
Project: Hadoop
Issue Type: Bug
Affects Versions: 0.14.4
Reporter: Koji Noguchi
Priority: Minor
Heapsize was set to 1G.
It'll be nice if dfs client doesn't require that much memory when listing the
directory.
Exception in thread "IPC Client connection to namenode/11.11.11.111:1111"
java.lang.OutOfMemoryError: GC overhead limit exceeded
at java.util.regex.Pattern.compile(Pattern.java:846)
at java.lang.String.replace(String.java:2208)
at org.apache.hadoop.fs.Path.normalizePath(Path.java:147)
at org.apache.hadoop.fs.Path.initialize(Path.java:137)
at org.apache.hadoop.fs.Path.<init>(Path.java:126)
at org.apache.hadoop.dfs.DFSFileInfo.readFields(DFSFileInfo.java:141)
at org.apache.hadoop.io.ObjectWritable.readObject(ObjectWritable.java:230)
at org.apache.hadoop.io.ObjectWritable.readObject(ObjectWritable.java:166)
at org.apache.hadoop.io.ObjectWritable.readObject(ObjectWritable.java:214)
at org.apache.hadoop.io.ObjectWritable.readFields(ObjectWritable.java:61)
at org.apache.hadoop.ipc.Client$Connection.run(Client.java:273)
Exception in thread "main" java.lang.OutOfMemoryError: GC overhead limit
exceeded
at java.util.Arrays.copyOfRange(Arrays.java:3209)
at java.lang.String.<init>(String.java:216)
at java.lang.StringBuffer.toString(StringBuffer.java:585)
at java.net.URI.toString(URI.java:1907)
at java.net.URI.<init>(URI.java:732)
at org.apache.hadoop.fs.Path.initialize(Path.java:137)
at org.apache.hadoop.fs.Path.<init>(Path.java:126)
at org.apache.hadoop.fs.Path.makeQualified(Path.java:296)
at org.apache.hadoop.dfs.DfsPath.<init>(DfsPath.java:35)
at
org.apache.hadoop.dfs.DistributedFileSystem.listPaths(DistributedFileSystem.java:181)
at org.apache.hadoop.fs.FsShell.ls(FsShell.java:405)
at org.apache.hadoop.fs.FsShell.ls(FsShell.java:423)
at org.apache.hadoop.fs.FsShell.ls(FsShell.java:423)
at org.apache.hadoop.fs.FsShell.ls(FsShell.java:423)
at org.apache.hadoop.fs.FsShell.ls(FsShell.java:399)
at org.apache.hadoop.fs.FsShell.doall(FsShell.java:1054)
at org.apache.hadoop.fs.FsShell.run(FsShell.java:1244)
at org.apache.hadoop.util.ToolBase.doMain(ToolBase.java:187)
at org.apache.hadoop.fs.FsShell.main(FsShell.java:1333)
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