[ https://issues.apache.org/jira/browse/CASSANDRA-14618?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Marcus Eriksson updated CASSANDRA-14618: ---------------------------------------- Status: Patch Available (was: Open) https://github.com/krummas/cassandra/commits/marcuse/14618 (on top of CASSANDRA-14656) example run; {code} $ ccm create -n3 fql $ ccm start $ for x in 1 2 3; do ccm node$x nodetool "enablefullquerylog --path /tmp/fql3/node$x"; done $ tools/bin/cassandra-stress write n=100k -rate threads=64 -schema replication\(factor=3\) $ for x in 1 2 3; do ccm node$x nodetool disablefullquerylog; done $ ccm remove ## start separate cassandra clusters on 127.0.0.1 and 192.168.1.51 $ bin/fqltool replay --target 127.0.0.1 --target 192.168.1.51 --results /tmp/results /tmp/fql2/node1 /tmp/fql2/node2 /tmp/fql2/node3 ... output {code} Example mismatch: {code} MISMATCH: Query = Query = SELECT schema_version FROM system.local WHERE key='local', Options = QueryOptions.DefaultQueryOptions[consistency=ONE,values=[],skipMetadata=false,options=org.apache.cassandra.cql3.QueryOptions$SpecificOptions@48b696e1,jsonValuesCache=<null>], Values = Results: 127.0.0.1: schema_version:uuid:cbfc4bb5a9b33706a22f6aebfd6f8737, 192.168.1.51: schema_version:uuid:7fca82ddb86f396380ba6ab0f318a293, {code} there are a few todos I want to do in followup tickets; * make it replay queries at the same (relative) pace as the timestamps recorded * make replay multi threaded but avoid executing queries against a partition that has an ongoing query. * add a {{fqltool split <n> <logfiles>...}} command which takes a set of log files and splits them in to n buckets, with each token only appearing in a single bucket to be able to replay these n buckets in parallel. > Create fqltool replay command > ----------------------------- > > Key: CASSANDRA-14618 > URL: https://issues.apache.org/jira/browse/CASSANDRA-14618 > Project: Cassandra > Issue Type: New Feature > Reporter: Marcus Eriksson > Assignee: Marcus Eriksson > Priority: Major > Labels: fqltool > Fix For: 4.x > > > Make it possible to replay the full query logs from CASSANDRA-13983 against > one or several clusters. The goal is to be able to compare different runs of > production traffic against different versions/configurations of Cassandra. > * It should be possible to take logs from several machines and replay them in > "order" by the timestamps recorded > * Record the results from each run to be able to compare different runs > (against different clusters/versions/etc) > * If {{fqltool replay}} is run against 2 or more clusters, the results should > be compared as we go -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@cassandra.apache.org For additional commands, e-mail: commits-h...@cassandra.apache.org