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Hadoop QA commented on HDFS-14806: ---------------------------------- | (x) *{color:red}-1 overall{color}* | \\ \\ || Vote || Subsystem || Runtime || Comment || | {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 1m 20s{color} | {color:blue} Docker mode activated. {color} | || || || || {color:brown} Prechecks {color} || | {color:green}+1{color} | {color:green} @author {color} | {color:green} 0m 0s{color} | {color:green} The patch does not contain any @author tags. {color} | | {color:green}+1{color} | {color:green} test4tests {color} | {color:green} 0m 0s{color} | {color:green} The patch appears to include 2 new or modified test files. {color} | || || || || {color:brown} trunk Compile Tests {color} || | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 21m 44s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 10s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} checkstyle {color} | {color:green} 0m 49s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 23s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 14m 56s{color} | {color:green} branch has no errors when building and testing our client artifacts. {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 21s{color} | {color:green} trunk passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 57s{color} | {color:green} trunk passed {color} | || || || || {color:brown} Patch Compile Tests {color} || | {color:green}+1{color} | {color:green} mvninstall {color} | {color:green} 1m 18s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} compile {color} | {color:green} 1m 7s{color} | {color:green} the patch passed {color} | | {color:red}-1{color} | {color:red} javac {color} | {color:red} 1m 7s{color} | {color:red} hadoop-hdfs-project_hadoop-hdfs generated 2 new + 473 unchanged - 2 fixed = 475 total (was 475) {color} | | {color:orange}-0{color} | {color:orange} checkstyle {color} | {color:orange} 0m 50s{color} | {color:orange} hadoop-hdfs-project/hadoop-hdfs: The patch generated 1 new + 29 unchanged - 0 fixed = 30 total (was 29) {color} | | {color:green}+1{color} | {color:green} mvnsite {color} | {color:green} 1m 13s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} whitespace {color} | {color:green} 0m 0s{color} | {color:green} The patch has no whitespace issues. {color} | | {color:green}+1{color} | {color:green} shadedclient {color} | {color:green} 14m 41s{color} | {color:green} patch has no errors when building and testing our client artifacts. {color} | | {color:green}+1{color} | {color:green} findbugs {color} | {color:green} 2m 37s{color} | {color:green} the patch passed {color} | | {color:green}+1{color} | {color:green} javadoc {color} | {color:green} 0m 57s{color} | {color:green} the patch passed {color} | || || || || {color:brown} Other Tests {color} || | {color:red}-1{color} | {color:red} unit {color} | {color:red}100m 2s{color} | {color:red} hadoop-hdfs in the patch failed. {color} | | {color:green}+1{color} | {color:green} asflicense {color} | {color:green} 0m 30s{color} | {color:green} The patch does not generate ASF License warnings. {color} | | {color:black}{color} | {color:black} {color} | {color:black}167m 48s{color} | {color:black} {color} | \\ \\ || Reason || Tests || | Failed junit tests | hadoop.hdfs.server.namenode.TestDecommissioningStatus | | | hadoop.hdfs.server.blockmanagement.TestBlockStatsMXBean | \\ \\ || Subsystem || Report/Notes || | Docker | Client=18.09.7 Server=18.09.7 Image:yetus/hadoop:bdbca0e53b4 | | JIRA Issue | HDFS-14806 | | JIRA Patch URL | https://issues.apache.org/jira/secure/attachment/12979585/HDFS-14806.003.patch | | Optional Tests | dupname asflicense compile javac javadoc mvninstall mvnsite unit shadedclient findbugs checkstyle | | uname | Linux 9069fb3f2143 4.15.0-58-generic #64-Ubuntu SMP Tue Aug 6 11:12:41 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux | | Build tool | maven | | Personality | /testptch/patchprocess/precommit/personality/provided.sh | | git revision | trunk / 2e2e540 | | maven | version: Apache Maven 3.3.9 | | Default Java | 1.8.0_222 | | findbugs | v3.1.0-RC1 | | javac | https://builds.apache.org/job/PreCommit-HDFS-Build/27792/artifact/out/diff-compile-javac-hadoop-hdfs-project_hadoop-hdfs.txt | | checkstyle | https://builds.apache.org/job/PreCommit-HDFS-Build/27792/artifact/out/diff-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt | | unit | https://builds.apache.org/job/PreCommit-HDFS-Build/27792/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt | | Test Results | https://builds.apache.org/job/PreCommit-HDFS-Build/27792/testReport/ | | Max. process+thread count | 2640 (vs. ulimit of 5500) | | modules | C: hadoop-hdfs-project/hadoop-hdfs U: hadoop-hdfs-project/hadoop-hdfs | | Console output | https://builds.apache.org/job/PreCommit-HDFS-Build/27792/console | | Powered by | Apache Yetus 0.8.0 http://yetus.apache.org | This message was automatically generated. > Bootstrap standby may fail if used in-progress tailing > ------------------------------------------------------ > > Key: HDFS-14806 > URL: https://issues.apache.org/jira/browse/HDFS-14806 > Project: Hadoop HDFS > Issue Type: Bug > Components: namenode > Affects Versions: 3.3.0 > Reporter: Chen Liang > Assignee: Chen Liang > Priority: Major > Attachments: HDFS-14806.001.patch, HDFS-14806.002.patch, > HDFS-14806.003.patch > > > One issue we went across was that if in-progress tailing is enabled, > bootstrap standby could fail. > When in-progress tailing is enabled, Bootstrap uses the RPC mechanism to get > edits. There is a config {{dfs.ha.tail-edits.qjm.rpc.max-txns}} that sets an > upper bound on how many txnid can be included in one RPC call. The default is > 5000. Meaning bootstraping NN (say NN1) can only pull at most 5000 edits from > JN. However, as part of bootstrap, NN1 queries another NN (say NN2) for NN2's > current transactionID, NN2 may return a state that is > 5000 txnid from NN1's > current image. But NN1 can only see 5000 more txnid from JNs. At this point > NN1 goes panic, because txnid retuned by JNs is behind NN2's returned state, > bootstrap then fail. > Essentially, bootstrap standby can fail if both of two following conditions > are met: > # in-progress tailing is enabled AND > # the boostraping NN is too far (>5000 txid) behind > Increasing the value of {{dfs.ha.tail-edits.qjm.rpc.max-txns}} to some super > large value allowed bootstrap to continue. But this is hardly the ideal > solution. -- This message was sent by Atlassian Jira (v8.3.2#803003) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org