public IndexPersistenceMgr(
int pageSize,
int entriesPerPage,
ServerConfiguration conf,
SnapshotMap<Long, Boolean> activeLedgers,
LedgerDirsManager ledgerDirsManager,
StatsLogger statsLogger)
throws IOException {
this.openFileLimit = conf.getOpenFileLimit();
this.activeLedgers = activeLedgers;
this.ledgerDirsManager = ledgerDirsManager;
this.pageSize = pageSize;
this.entriesPerPage = entriesPerPage;
LOG.info("openFileLimit = {}", openFileLimit);
// Retrieve all of the active ledgers.
getActiveLedgers();
ledgerDirsManager.addLedgerDirsListener(getLedgerDirsListener());
// Expose Stats
evictedLedgersCounter = statsLogger.getCounter(LEDGER_CACHE_NUM_EVICTED_LEDGERS);
statsLogger.registerGauge(
NUM_OPEN_LEDGERS,
new Gauge<Integer>() {
@Override
public Integer getDefaultValue() {
return 0;
}
@Override
public Integer getSample() {
return getNumOpenLedgers();
}
});
}
