private synchronized void scheduleSnapshotIfNeeded() {
if (!shardGateway.requiresSnapshot()) {
return;
}
if (!shardGateway.requiresSnapshotScheduling()) {
return;
}
if (!indexShard.routingEntry().primary()) {
// we only do snapshotting on the primary shard
return;
}
if (!indexShard.routingEntry().started()) {
// we only schedule when the cluster assumes we have started
return;
}
if (snapshotScheduleFuture != null) {
// we are already scheduling this one, ignore
return;
}
if (snapshotInterval.millis() != -1) {
// we need to schedule snapshot
if (logger.isDebugEnabled()) {
logger.debug("scheduling snapshot every [{}]", snapshotInterval);
}
snapshotScheduleFuture =
threadPool.schedule(snapshotInterval, ThreadPool.Names.SNAPSHOT, snapshotRunnable);
}
}
public void snapshotOnClose() {
if (shardGateway.requiresSnapshot() && snapshotOnClose) {
try {
snapshot("shutdown");
} catch (Exception e) {
logger.warn("failed to snapshot on close", e);
}
}
}