ChiaPing Tsai created HBASE-17131:
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Summary: Livelook in HRegion#processRowsWithLocks
Key: HBASE-17131
URL: https://issues.apache.org/jira/browse/HBASE-17131
Project: HBase
Issue Type: Bug
Reporter: ChiaPing Tsai
{code:title=HRegion.java|borderStyle=solid}
try {
// STEP 2. Acquire the row lock(s)
acquiredRowLocks = new ArrayList<RowLock>(rowsToLock.size());
for (byte[] row : rowsToLock) {
// Attempt to lock all involved rows, throw if any lock times out
// use a writer lock for mixed reads and writes
acquiredRowLocks.add(getRowLockInternal(row, false));
}
// STEP 3. Region lock
lock(this.updatesLock.readLock(), acquiredRowLocks.size() == 0 ? 1 :
acquiredRowLocks.size());
locked = true;
boolean success = false;
long now = EnvironmentEdgeManager.currentTime();
try {
{code}
We should lock all involved rows in the second try-finally. Otherwise, we won’t
release the previous locks if any subsequent lock times out.
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