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HBASE-26106 AbstractFSWALProvider#getArchivedLogPath doesn't look for wal file in all oldWALs directory. #3636
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HBASE-26106 AbstractFSWALProvider#getArchivedLogPath doesn't look for…
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HBASE-26106 Add comment
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Merge branch 'master' of https://github.com/apache/hbase into HBASE-2…
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HBASE-26106 More changes
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HBASE-26106 Addressing review comments
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Merge branch 'master' of https://github.com/apache/hbase into HBASE-2…
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Merge branch 'master' of https://github.com/apache/hbase into HBASE-2…
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HBASE-26106 Address checkstyle warning
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Original file line number | Diff line number | Diff line change |
---|---|---|
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@@ -536,74 +536,6 @@ public static Path findArchivedLog(Path path, Configuration conf) throws IOExcep | |
return null; | ||
} | ||
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||
/** | ||
* Opens WAL reader with retries and additional exception handling | ||
* @param path path to WAL file | ||
* @param conf configuration | ||
* @return WAL Reader instance | ||
*/ | ||
public static org.apache.hadoop.hbase.wal.WAL.Reader openReader(Path path, Configuration conf) | ||
throws IOException { | ||
long retryInterval = 2000; // 2 sec | ||
int maxAttempts = 30; | ||
int attempt = 0; | ||
Exception ee = null; | ||
org.apache.hadoop.hbase.wal.WAL.Reader reader = null; | ||
while (reader == null && attempt++ < maxAttempts) { | ||
try { | ||
// Detect if this is a new file, if so get a new reader else | ||
// reset the current reader so that we see the new data | ||
reader = WALFactory.createReader(path.getFileSystem(conf), path, conf); | ||
return reader; | ||
} catch (FileNotFoundException fnfe) { | ||
// If the log was archived, continue reading from there | ||
Path archivedLog = AbstractFSWALProvider.getArchivedLogPath(path, conf); | ||
if (!Objects.equals(path, archivedLog)) { | ||
return openReader(archivedLog, conf); | ||
} else { | ||
throw fnfe; | ||
} | ||
} catch (LeaseNotRecoveredException lnre) { | ||
// HBASE-15019 the WAL was not closed due to some hiccup. | ||
LOG.warn("Try to recover the WAL lease " + path, lnre); | ||
recoverLease(conf, path); | ||
reader = null; | ||
ee = lnre; | ||
} catch (NullPointerException npe) { | ||
// Workaround for race condition in HDFS-4380 | ||
// which throws a NPE if we open a file before any data node has the most recent block | ||
// Just sleep and retry. Will require re-reading compressed WALs for compressionContext. | ||
LOG.warn("Got NPE opening reader, will retry."); | ||
reader = null; | ||
ee = npe; | ||
} | ||
if (reader == null) { | ||
// sleep before next attempt | ||
try { | ||
Thread.sleep(retryInterval); | ||
} catch (InterruptedException e) { | ||
} | ||
} | ||
} | ||
throw new IOException("Could not open reader", ee); | ||
} | ||
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// For HBASE-15019 | ||
private static void recoverLease(final Configuration conf, final Path path) { | ||
There was a problem hiding this comment. Choose a reason for hiding this commentThe reason will be displayed to describe this comment to others. Learn more. This method is not called anywhere so removing it. |
||
try { | ||
final FileSystem dfs = CommonFSUtils.getCurrentFileSystem(conf); | ||
RecoverLeaseFSUtils.recoverFileLease(dfs, path, conf, new CancelableProgressable() { | ||
@Override | ||
public boolean progress() { | ||
LOG.debug("Still trying to recover WAL lease: " + path); | ||
return true; | ||
} | ||
}); | ||
} catch (IOException e) { | ||
LOG.warn("unable to recover lease for WAL: " + path, e); | ||
} | ||
} | ||
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@Override | ||
public void addWALActionsListener(WALActionsListener listener) { | ||
listeners.add(listener); | ||
|
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This method is not called anywhere so removing it.