Details
Critical Description
To Recreate:
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1) Create a blobstore key for a large file (1 or 2 GB). Size of the file does not matter if nimbus can be killed while the blob is being created.
2) while the blob is being created, restart nimbus (this is easiest way to regenerate, there can be various reasons due to which a blob couldn't be successfully created in nimbus)
3) When nimbus tries to start on restart, it will keep dying due to DirectoryNotEmptyException and never come up.
Expected Behavior
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Partial blobstore key is deleted cleanly and doesn't affect nimbus.
The actual, incorrect behavior.
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2016-09-14 15:07:48.518 o.a.s.zookeeper [INFO] Queued up for leader lock.
2016-09-14 15:07:48.576 o.a.s.zookeeper [INFO] xxx gained leadership
2016-09-14 15:07:48.581 o.a.s.d.nimbus [ERROR] Error on initialization of server service-handler
java.lang.RuntimeException: java.nio.file.DirectoryNotEmptyException: /opt/storm/storm-local/blobs/955/some_big_file
at org.apache.storm.blobstore.LocalFsBlobStore.deleteBlob(LocalFsBlobStore.java:229)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at clojure.lang.Reflector.invokeMatchingMethod(Reflector.java:93)
at clojure.lang.Reflector.invokeInstanceMethod(Reflector.java:28)
at org.apache.storm.daemon.nimbus$setup_blobstore.invoke(nimbus.clj:1196)
at org.apache.storm.daemon.nimbus$fn_7064$exec_fn2461auto___7065.invoke(nimbus.clj:1416)
at clojure.lang.AFn.applyToHelper(AFn.java:156)
at clojure.lang.AFn.applyTo(AFn.java:144)
at clojure.core$apply.invoke(core.clj:630)
at org.apache.storm.daemon.nimbus$fn_7064$service_handler_7308.doInvoke(nimbus.clj:1358)
at clojure.lang.RestFn.invoke(RestFn.java:421)
at org.apache.storm.daemon.nimbus$launch_server_BANG_.invoke(nimbus.clj:2206)
at org.apache.storm.daemon.nimbus$_launch.invoke(nimbus.clj:2239)
at org.apache.storm.daemon.nimbus$_main.invoke(nimbus.clj:2262)
at clojure.lang.AFn.applyToHelper(AFn.java:152)
at clojure.lang.AFn.applyTo(AFn.java:144)
at org.apache.storm.daemon.nimbus.main(Unknown Source)
Caused by: java.nio.file.DirectoryNotEmptyException: /opt/storm/storm-local/blobs/955/some_big_file
at sun.nio.fs.UnixFileSystemProvider.implDelete(UnixFileSystemProvider.java:242)
at sun.nio.fs.AbstractFileSystemProvider.deleteIfExists(AbstractFileSystemProvider.java:108)
at java.nio.file.Files.deleteIfExists(Files.java:1165)
at org.apache.storm.blobstore.FileBlobStoreImpl.delete(FileBlobStoreImpl.java:239)
at org.apache.storm.blobstore.FileBlobStoreImpl.deleteKey(FileBlobStoreImpl.java:178)
at org.apache.storm.blobstore.LocalFsBlobStore.deleteBlob(LocalFsBlobStore.java:226)
... 19 more
2016-09-14 15:07:48.588 o.a.s.util [ERROR] Halting process: ("Error on initialization")
java.lang.RuntimeException: ("Error on initialization")
at org.apache.storm.util$exit_process_BANG_.doInvoke(util.clj:341)
at clojure.lang.RestFn.invoke(RestFn.java:423)
at org.apache.storm.daemon.nimbus$fn_7064$service_handler_7308.doInvoke(nimbus.clj:1358)
at clojure.lang.RestFn.invoke(RestFn.java:421)
at org.apache.storm.daemon.nimbus$launch_server_BANG_.invoke(nimbus.clj:2206)
at org.apache.storm.daemon.nimbus$_launch.invoke(nimbus.clj:2239)
at org.apache.storm.daemon.nimbus$_main.invoke(nimbus.clj:2262)
at clojure.lang.AFn.applyToHelper(AFn.java:152)
at clojure.lang.AFn.applyTo(AFn.java:144)
at org.apache.storm.daemon.nimbus.main(Unknown Source)
[root]# ls -l /opt/storm/storm-local/blobs/955/some_big_file
total 591060
rw-rr- 1 storm storm 605241344 Sep 14 15:07 1473865562841.tmp
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