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  1. Apache Ozone
  2. HDDS-10739

OM down to InterruptedException 'Unable to process metadata snapshot request'

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Details

    • Bug
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 1.4.0
    • OM, Snapshot

    Description

      Scenario :

      • Generate data over parallel threads over various volume/buckets
      • Perform parallel snapshot create/delete/list operations over above buckets
      • Perform parallel snapdiff operations over each bucket
      • Perform parallel read operations of snapshot contents
      • Introduce OM and cluster restarts in between along with DN decommissioning and balancer restarts.

      OM Error Stacktrace -

      2024-04-22 13:18:25,071 INFO [om131@group-2BC026ED99AC-StateMachineUpdater]-org.eclipse.jetty.server.handler.ContextHandler: Stopped o.e.j.s.ServletContextHandler@74e87f03{logs,/logs,file:///var/log/hadoop-ozone/,STOPPED}
      2024-04-22 13:18:40,074 ERROR [qtp560715723-676269]-org.apache.hadoop.hdds.utils.DBCheckpointServlet: Unable to process metadata snapshot request.
      java.lang.InterruptedException
              at java.util.concurrent.locks.AbstractQueuedSynchronizer.doAcquireSharedInterruptibly(AbstractQueuedSynchronizer.java:998)
              at java.util.concurrent.locks.AbstractQueuedSynchronizer.acquireSharedInterruptibly(AbstractQueuedSynchronizer.java:1304)
              at java.util.concurrent.Semaphore.acquire(Semaphore.java:312)
              at org.apache.hadoop.ozone.lock.BootstrapStateHandler$Lock.lock(BootstrapStateHandler.java:31)
              at org.apache.hadoop.ozone.om.OMDBCheckpointServlet$Lock.lock(OMDBCheckpointServlet.java:654)
              at org.apache.hadoop.hdds.utils.DBCheckpointServlet.generateSnapshotCheckpoint(DBCheckpointServlet.java:197)
              at org.apache.hadoop.hdds.utils.DBCheckpointServlet.doGet(DBCheckpointServlet.java:303)
              at javax.servlet.http.HttpServlet.service(HttpServlet.java:687)
              at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
              at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:799)
              at org.eclipse.jetty.servlet.ServletHandler$ChainEnd.doFilter(ServletHandler.java:1656)
              at org.apache.hadoop.http.lib.StaticUserWebFilter$StaticUserFilter.doFilter(StaticUserWebFilter.java:110)
              at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
              at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1626)
              at org.apache.hadoop.hdds.server.http.HttpServer2$QuotingInputFilter.doFilter(HttpServer2.java:1681)
              at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
              at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1626)
              at org.apache.hadoop.hdds.server.http.NoCacheFilter.doFilter(NoCacheFilter.java:48)
              at org.eclipse.jetty.servlet.FilterHolder.doFilter(FilterHolder.java:193)
              at org.eclipse.jetty.servlet.ServletHandler$Chain.doFilter(ServletHandler.java:1626)
              at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:552)
              at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:143)
              at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:600)
              at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
              at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:235)
              at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1624)
              at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:233)
              at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1440)
              at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:188)
              at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:505)
              at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1594)
              at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:186)
              at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1355)
              at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
              at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:146)
              at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:127)
              at org.eclipse.jetty.server.Server.handle(Server.java:516)
              at org.eclipse.jetty.server.HttpChannel.lambda$handle$1(HttpChannel.java:487)
              at org.eclipse.jetty.server.HttpChannel.dispatch(HttpChannel.java:732)
              at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:479)
              at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:277)
              at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
              at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
              at org.eclipse.jetty.io.ssl.SslConnection$DecryptedEndPoint.onFillable(SslConnection.java:555)
              at org.eclipse.jetty.io.ssl.SslConnection.onFillable(SslConnection.java:410)
              at org.eclipse.jetty.io.ssl.SslConnection$2.succeeded(SslConnection.java:164)
              at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
              at org.eclipse.jetty.io.ChannelEndPoint$1.run(ChannelEndPoint.java:104)
              at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:338)
              at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:315)
              at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.tryProduce(EatWhatYouKill.java:173)
              at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.run(EatWhatYouKill.java:131)
              at org.eclipse.jetty.util.thread.ReservedThreadExecutor$ReservedThread.run(ReservedThreadExecutor.java:409)
              at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:883)
              at org.eclipse.jetty.util.thread.QueuedThreadPool$Runner.run(QueuedThreadPool.java:1034)
              at java.lang.Thread.run(Thread.java:748)
      2024-04-22 13:18:40,074 ERROR [qtp560715723-676994]-org.apache.hadoop.hdds.utils.DBCheckpointServlet: Unable to process metadata snapshot request.
      java.lang.InterruptedException 

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            hemantk Hemant Kumar
            jyosin Jyotirmoy Sinha
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              Created:
              Updated:
              Resolved: