arp7 commented on a change in pull request #1129:
URL: https://github.com/apache/hadoop-ozone/pull/1129#discussion_r453138655
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File path:
hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/OmMetadataManagerImpl.java
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@@ -249,6 +252,20 @@ public void start(OzoneConfiguration configuration) throws
IOException {
if (store == null) {
File metaDir = OMStorage.getOmDbDir(configuration);
+ // Check if there is a DB Inconsistent Marker in the metaDir. This
+ // marker indicates that the DB is in an inconsistent state and hence
+ // the OM process should be terminated.
+ File markerFile = new File(metaDir, DB_TRANSIENT_MARKER);
+ if (Files.exists(markerFile.toPath())) {
+ LOG.error("File {} marks that OM DB is in an inconsistent state.");
+ // Note - The marker file should be deleted only after fixing the DB.
+ // In an HA setup, this can be done by replacing this DB with a
+ // checkpoint from another OM.
+ String errorMsg = "Cannot load OM DB as it is in an inconsistent " +
+ "state.";
+ ExitUtils.terminate(1, errorMsg, LOG);
Review comment:
Should we use `ExitManager` here?
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