[ https://issues.apache.org/jira/browse/HDFS-12832?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
DENG FEI updated HDFS-12832: ---------------------------- Attachment: exception.log > INode.getFullPathName may throw ArrayIndexOutOfBoundsException lead to > NameNode exit > ------------------------------------------------------------------------------------ > > Key: HDFS-12832 > URL: https://issues.apache.org/jira/browse/HDFS-12832 > Project: Hadoop HDFS > Issue Type: Bug > Components: namenode > Affects Versions: 2.7.4, 3.0.0-beta1 > Reporter: DENG FEI > Priority: Critical > Attachments: HDFS-12832-trunk-001.patch, exception.log > > > {code:title=INode.java|borderStyle=solid} > public String getFullPathName() { > // Get the full path name of this inode. > if (isRoot()) { > return Path.SEPARATOR; > } > // compute size of needed bytes for the path > int idx = 0; > for (INode inode = this; inode != null; inode = inode.getParent()) { > // add component + delimiter (if not tail component) > idx += inode.getLocalNameBytes().length + (inode != this ? 1 : 0); > } > byte[] path = new byte[idx]; > for (INode inode = this; inode != null; inode = inode.getParent()) { > if (inode != this) { > path[--idx] = Path.SEPARATOR_CHAR; > } > byte[] name = inode.getLocalNameBytes(); > idx -= name.length; > System.arraycopy(name, 0, path, idx, name.length); > } > return DFSUtil.bytes2String(path); > } > {code} > We found ArrayIndexOutOfBoundsException at > _{color:#707070}System.arraycopy(name, 0, path, idx, name.length){color}_ > when ReplicaMonitor work ,and the NameNode will quit. > It seems the two loop is not synchronized, the path's length is changed. -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org