hbase2.0 /hbase/MasterProcWALs下的log突然不能自动删除掉

首先可以看看WALProcedureStore类的源码，这段告警是说超过hbase.procedure.store.wal.warn.threshold配置的阈值导致，默认是64。如果超过此配置的阈值的时候就不会做清理日志的操作了，源码如下：
boolean rollWriter(final long logId) throws IOException {

...
logs.add(new ProcedureWALFile(fs, newLogFile, header, startPos, rollTs));

// if it's the first next WAL being added, build the holding cleanup tracker
if (logs.size() == 2) {
buildHoldingCleanupTracker();
} else if (logs.size() > walCountWarnThreshold) {
LOG.warn("procedure WALs count=" + logs.size() +

" above the warning threshold " + walCountWarnThreshold +
". check running procedures to see if something is stuck.");

}

LOG.info("Rolled new Procedure Store WAL, id={}", logId);
return true;

}