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https://issues.apache.org/jira/browse/HBASE-14391?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sean Busbey updated HBASE-14391:
--------------------------------
Fix Version/s: (was: 1.2.1)
1.2.2
> Empty regionserver WAL will never be deleted although the coresponding
> regionserver has been stale
> --------------------------------------------------------------------------------------------------
>
> Key: HBASE-14391
> URL: https://issues.apache.org/jira/browse/HBASE-14391
> Project: HBase
> Issue Type: Bug
> Components: wal
> Affects Versions: 1.0.2
> Reporter: Qianxi Zhang
> Assignee: Qianxi Zhang
> Fix For: 2.0.0, 1.3.0, 1.1.5, 1.2.2
>
> Attachments: HBASE-14391-master-v3.patch,
> HBASE_14391_master_v4.patch, HBASE_14391_trunk_v1.patch,
> HBASE_14391_trunk_v2.patch, WALs-leftover-dir.txt
>
>
> When I restarted the hbase cluster in which there was few data, I found there
> are two directories for one host with different timestamp which indicates
> that the old regionserver wal directory is not deleted.
> FHLog#989
> {code}
> @Override
> public void close() throws IOException {
> shutdown();
> final FileStatus[] files = getFiles();
> if (null != files && 0 != files.length) {
> for (FileStatus file : files) {
> Path p = getWALArchivePath(this.fullPathArchiveDir, file.getPath());
> // Tell our listeners that a log is going to be archived.
> if (!this.listeners.isEmpty()) {
> for (WALActionsListener i : this.listeners) {
> i.preLogArchive(file.getPath(), p);
> }
> }
> if (!FSUtils.renameAndSetModifyTime(fs, file.getPath(), p)) {
> throw new IOException("Unable to rename " + file.getPath() + " to "
> + p);
> }
> // Tell our listeners that a log was archived.
> if (!this.listeners.isEmpty()) {
> for (WALActionsListener i : this.listeners) {
> i.postLogArchive(file.getPath(), p);
> }
> }
> }
> LOG.debug("Moved " + files.length + " WAL file(s) to " +
> FSUtils.getPath(this.fullPathArchiveDir));
> }
> LOG.info("Closed WAL: " + toString());
> }
> {code}
> When regionserver is stopped, the hlog will be archived, so wal/regionserver
> is empty in hdfs.
> MasterFileSystem#252
> {code}
> if (curLogFiles == null || curLogFiles.length == 0) {
> // Empty log folder. No recovery needed
> continue;
> }
> {code}
> The regionserver directory will be not splitted, it makes sense. But it will
> be not deleted.
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