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Brownsys pivottrace 210 beta #1
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Commits on Sep 23, 2013
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Commits on Oct 2, 2013
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Instrumented the WritableRpcEngine. I'm not sure where this is used (as
opposed to the Protobuf engine) but Todd's htrace instrumentation chose to instrument this class too, so I might as well include it.
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Commits on Oct 3, 2013
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Commits on Oct 4, 2013
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Commits on Oct 5, 2013
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Changed location of 'close' log messages, since close can be called
multiple times, we only want it logged when the stream is first closed.
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Commits on Oct 8, 2013
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Finished implementation of file writes from client side; mostly
implementation in DFSOutputStream
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Commits on Oct 10, 2013
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Instrumented a couple more protobuf messages, added a utility class to
put/retrieve XTrace contexts from those protobuf messages, and modified a bunch of classes to call the utility methods rather than the protobuf newBuilder methods.
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Commits on Oct 11, 2013
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Commits on Oct 12, 2013
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Commits on Oct 16, 2013
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Removed some annoying unnecessary RPC log messages, and added a 'name'
tag to name the spans in the rpc invoker.
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Commits on Oct 17, 2013
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Changed the startTrace logpoints in DataXceiver to just logEvents.
Starting traces here isn't such a good idea; background tasks end up accidentally starting traces when really we're not interestedin them.
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Use XTraceResourceTracing branching API to log the explicit computation
boundaries when kicking off new threads. Also, add some names when setting XTraceContext to give spans names.
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Commits on Oct 18, 2013
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Slightly modify server to extend the boundary of where the xtrace
context is cleared.
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Commits on Oct 21, 2013
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Commits on Oct 26, 2013
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unknown authored and unknown committed
Oct 26, 2013 Configuration menu - View commit details
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Commits on Oct 29, 2013
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Temporarily disabled code to propagate metadata between replicas, as …
…it seems to be causing problems
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Merge branch 'brownsys-rtrace-210-beta' of github.com:brownsys/browns…
…ys-hadoop into brownsys-rtrace-210-beta
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Fix for the mysterious bug that was causing checksum inconsistencies.…
… Root cause was a bug in HDFS source code unrelated to X-Trace instrumentation. Have fixed the bug.
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Commits on Nov 12, 2013
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Added the necessary command line arguments to put xresourcetracing on…
… the bootclasspath, but left them commented out for now
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Commits on Nov 13, 2013
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We can now put xresourcetracing on the bootclasspath. It only takes e…
…ffect if xresourcetracing was built to weave rt.jar
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Commits on Nov 19, 2013
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Use a more accurate estimate for the PacketHeader size, now taking in…
…to account the fact that XTrace metadata can propagate options which might increase the PacketHeader size
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Commits on Nov 22, 2013
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Removed some hard-coded xtrace context passing that is now handled ge…
…nerically by the AspectJ instrumentation
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Commits on Dec 11, 2013
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Clear the thread context in lease renewer, which is a long-lived thre…
…ad and shouldn't be attributed to the first task that kicks it off
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Commits on Jan 16, 2014
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Commits on Jan 27, 2014
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Removed and modified some of the XTraceContext.startTrace events, bec…
…ause they were polluting trace tags and annoying the hell out of me
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Commits on Jan 30, 2014
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Commented out the inclusion of resource tracing on the bootclasspath;…
… it limits the classes that can be turned on and off in xtrace config. For now, we aren't using rt.jar instrumentation, and therefore no reason for these to be on the bootclasspath
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Commits on Feb 14, 2014
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Commits on Feb 18, 2014
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Added a few entries to the default hdfs config; by default, there are…
… a few things we want turned off
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Commits on Feb 28, 2014
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Applied broken pom patch from HADOOP-10110; hasn't affected us thus f…
…ar but sandbox build was failing
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Commits on Mar 11, 2014
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Revert "Removed some logging that was temporary"
This reverts commit d8d8727.
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Commits on Mar 24, 2014
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Migration from X-Trace 2.0 to X-Trace 3.0. Preliminary commit of unte…
…sted instrumentation
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Commits on Mar 25, 2014
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Commits on Mar 26, 2014
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Commits on Apr 1, 2014
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Slight changes to the RPC server and client response sending/processi…
…ng threads, to make sure the correct XTrace metadata is set at all times
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Commits on Apr 21, 2014
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For now, comment out the random sleep if a complete call fails after …
…writing a file, because it produces way too much arbitrary interference
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Commits on Apr 23, 2014
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Commits on Apr 24, 2014
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Commits on Apr 27, 2014
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Commits on Apr 28, 2014
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Commits on Jun 5, 2014
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Moved the AspectJ stuff to the root pom. I'm really not sure which on…
…e it's supposed to go in though.
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Commits on Aug 13, 2014
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Commits on Aug 15, 2014
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Commits on Sep 1, 2014
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Fix up the propagation of X-Trace metadata from NodeManager to Contai…
…ners (specifically, YarnChild and MRAppMaster containers
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Let the examples in the examples jar start X-Trace tasks, useful for …
…debugging and verifying that everything is working
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Base64 encoding isn't quite compatible with HTTP headers because it u…
…ses a disallowed character '=' for padding. For now just switch to Base16, which is less efficient but only includes alphanumeric characters. Could tweak X-Trace base64 to not include padding but don't want to risk violating any existing instrumentation, no time to fix it
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Commits on Sep 3, 2014
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Commits on Sep 15, 2014
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Commits on Oct 21, 2014
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Manually disable datanode hostname check. Later versions of HDFS make…
… this configurable.
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Commits on Dec 10, 2014
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Revert "Add some logging for datanode selection"
This reverts commit 220170e.
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Removed unnecessary import Instrumented the WritableRpcEngine. I'm not sure where this is used (as opposed to the Protobuf engine) but Todd's htrace instrumentation chose to instrument this class too, so I might as well include it. Add XTrace metadata to the data transfer header protos Start tracing commands when initiated from the filesystem. Changed the DataNode receiver to start traces or join traces. Added XTrace metadata to the block and packet transfer headers Instrumented the sender/receiver for downloading files from HDFS Add check for xtrace metadata Move start trace to the DataXceiver and add a little instrumentation for writeblock. Add XTrace instrumentation to pipeline write acks Instrument code that mirrors data when pipelining to in-place modify the xtrace metadata Removed unnecessary instrumentation Minor mistakes in the xtrace log statements Tiny bits of additional instrumentation Changed location of 'close' log messages, since close can be called multiple times, we only want it logged when the stream is first closed. Finished implementation of file writes from client side; mostly implementation in DFSOutputStream Instrumentation bugfix Instrumented a couple more protobuf messages, added a utility class to put/retrieve XTrace contexts from those protobuf messages, and modified a bunch of classes to call the utility methods rather than the protobuf newBuilder methods. Fixed a context joining problem in the block receiver Instrumented start and end of many DFSClient api function calls Added some resource tracing events Added an extra log statement to the DFSOutputStream Added log statement to indicate that we're forcing a namenode block update Added some instrumentation of some of the main locks used on the namenode. Removed some annoying unnecessary RPC log messages, and added a 'name' tag to name the spans in the rpc invoker. Changed the startTrace logpoints in DataXceiver to just logEvents. Starting traces here isn't such a good idea; background tasks end up accidentally starting traces when really we're not interestedin them. Use XTraceResourceTracing branching API to log the explicit computation boundaries when kicking off new threads. Also, add some names when setting XTraceContext to give spans names. Slightly modify server to extend the boundary of where the xtrace context is cleared. Removed all resource tracing stuff, which will be moved to a new branch. Added dependency to XResourceTracing Temporarily disabled code to propagate metadata between replicas, as it seems to be causing problems Fixed an XTrace logging bug Fix for the mysterious bug that was causing checksum inconsistencies. Root cause was a bug in HDFS source code unrelated to X-Trace instrumentation. Have fixed the bug. Some small instrumentation tweaks Added XResourceTracing as a bootclasspath option Added the necessary command line arguments to put xresourcetracing on the bootclasspath, but left them commented out for now We can now put xresourcetracing on the bootclasspath. It only takes effect if xresourcetracing was built to weave rt.jar Use a more accurate estimate for the PacketHeader size, now taking into account the fact that XTrace metadata can propagate options which might increase the PacketHeader size Removed some hard-coded xtrace context passing that is now handled generically by the AspectJ instrumentation Clear the thread context in lease renewer, which is a long-lived thread and shouldn't be attributed to the first task that kicks it off Fix to add causality when the sending thread has to wait to receive ACKs Fixed a bug - using less than instead of greater than Removed and modified some of the XTraceContext.startTrace events, because they were polluting trace tags and annoying the hell out of me Commented out the inclusion of resource tracing on the bootclasspath; it limits the classes that can be turned on and off in xtrace config. For now, we aren't using rt.jar instrumentation, and therefore no reason for these to be on the bootclasspath Commented out bootclasspath stuff, since for now we don't want or need it More network instrumentation for RPC calls Added a few entries to the default hdfs config; by default, there are a few things we want turned off Testing the write speed with a lower cache drop behind buffer lag Applied broken pom patch from HADOOP-10110; hasn't affected us thus far but sandbox build was failing Temporary instrumentation adding additional events to DataXceiver Undo previous commit Add some more temporary logging Removed some logging that was temporary Revert "Removed some logging that was temporary" This reverts commit d8d8727. Migration from X-Trace 2.0 to X-Trace 3.0. Preliminary commit of untested instrumentation Small fix Peer cache is long lived, don't attribute to first task we see Whoops... didn't commit this properly... Add a few log messages to NativeIO, why not Instrument call queue in IPC Server Slight changes to the RPC server and client response sending/processing threads, to make sure the correct XTrace metadata is set at all times Add ability to have connection-per-client in a single process For now, comment out the random sleep if a complete call fails after writing a file, because it produces way too much arbitrary interference Add 5ms sleep instead of 400ms sleep Add instrumentation of DN heartbeats Bad import removed Instrument more background tasks Add a hacky addition to allow kinda throttling of background block replication Oh, and make methods static Fix divide by zero exception Try alternative approach to replication throttling using the balancer bandwidth Also default to large balancer bandwidth Use both approaches simultaneously! Removed balancer bandwidth - unnecessary Moved the AspectJ stuff to the root pom. I'm really not sure which one it's supposed to go in though. Indentation in pom Add showWeaveInfo=true to pom Add throttling points to HDFS Rename the throttling point on the RPC server Put servername in the call queue to allow multiple servers Fix up the propagation of X-Trace metadata from NodeManager to Containers (specifically, YarnChild and MRAppMaster containers Let the examples in the examples jar start X-Trace tasks, useful for debugging and verifying that everything is working Base64 encoding isn't quite compatible with HTTP headers because it uses a disallowed character '=' for padding. For now just switch to Base16, which is less efficient but only includes alphanumeric characters. Could tweak X-Trace base64 to not include padding but don't want to risk violating any existing instrumentation, no time to fix it Fixed up the inclusion of xtrace metadata in the shuffle header Put throttling queue only on NN server for now Only add call queue instrumentation for namenode for now Foolishly forgot to use base 16 decoding of XTrace header in shuffle handler Add throttling point to ShuffleHandler and to RawFileSystem Add some special handling for MR shuffle handler network output Remove previous commit instrumentation of shuffle handler, was too much Remove throttling point from local file system, put in spill thread Add some cpu tracking... test Put throttling points in new position remove spill throttler Share throttling point for ifile Do this manually... Manually disable datanode hostname check. Later versions of HDFS make this configurable. Add HDFS config option to specify whether to fadvise long files Add some logging for datanode selection Revert "Add some logging for datanode selection" This reverts commit 220170e.
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Merge branch 'brownsys-rtrace-210-beta' of github.com:brownsys/browns…
…ys-hadoop into brownsys-rtrace-210-beta
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Commits on Dec 22, 2014
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added mvn dependency on PivotTracing from retro
rroelke committedDec 22, 2014 Configuration menu - View commit details
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Commits on Mar 8, 2015
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Merge branch 'brownsys-pivottrace-210-beta' of github.com:brownsys/br…
…ownsys-hadoop into brownsys-pivottrace-210-beta
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