ptlrs commented on code in PR #9947:
URL: https://github.com/apache/ozone/pull/9947#discussion_r3134572906
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hadoop-hdds/container-service/src/main/java/org/apache/hadoop/ozone/container/common/volume/HddsVolume.java:
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@@ -306,20 +307,34 @@ public synchronized VolumeCheckResult check(@Nullable
Boolean unused)
@VisibleForTesting
public VolumeCheckResult checkDbHealth(File dbFile) throws
InterruptedException {
- if (!getDiskCheckEnabled()) {
+ if (!(getDiskCheckEnabled() &&
getDatanodeConfig().isRocksDbDiskCheckEnabled())) {
return VolumeCheckResult.HEALTHY;
}
- try (ManagedOptions managedOptions = new ManagedOptions();
- ManagedRocksDB ignored = ManagedRocksDB.openReadOnly(managedOptions,
dbFile.toString())) {
- // Do nothing. Only check if rocksdb is accessible.
- LOG.debug("Successfully opened the database at \"{}\" for HDDS volume
{}.", dbFile, getStorageDir());
- } catch (Exception e) {
- if (Thread.currentThread().isInterrupted()) {
- throw new InterruptedException("Check of database for volume " + this
+ " interrupted.");
+ // We attempt to open RocksDb twice to ignore any transient errors
+ // and to confirm that we actually cannot open RocksDb in readonly mode.
+ final int maxAttempts = getDatanodeConfig().getDiskCheckRetryAttempts();
+ final Duration maxRetryGap = getDatanodeConfig().getDiskCheckRetryGap();
+ for (int attempt = 0; attempt < maxAttempts; attempt++) {
+ try (ManagedOptions managedOptions = new ManagedOptions();
+ ManagedRocksDB ignored =
+ ManagedRocksDB.openAsSecondary(managedOptions,
dbFile.toString(), getTmpDir().getPath())) {
+ // Do nothing. Only check if rocksdb is accessible.
+ LOG.debug("Successfully opened the database at \"{}\" for HDDS volume
{}.", dbFile, getStorageDir());
Review Comment:
This is debug because, we don't wait it to be too noisy.
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