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4453 Commits

Author SHA1 Message Date
antirez a94aa39c86 LATENCY command / monitor basic tests. 2014-07-10 16:23:54 +02:00
antirez 0dcc754f68 LATENCY HISTORY returns empty array if no data is available. 
Previously we returned an error.
 2014-07-10 16:20:40 +02:00
antirez 79d2f70f5c Test: enable latency monitor in the default config. 
This way as a side effect of running the test we also stress the latency
monitor data collection.
 2014-07-10 15:04:34 +02:00
antirez e01195e90d Test: AOF rewrite during write load. 2014-07-10 11:25:12 +02:00
antirez 067e365042 Fixed a few missing newline in createLatencyReport(). 2014-07-09 16:45:40 +02:00
antirez fda2b30346 createLatencyReport(): compile before commit avoids commits. 2014-07-08 17:17:08 +02:00
antirez 924dc9731f createLatencyReport(), fix mount option name. 2014-07-08 17:12:21 +02:00
antirez 51e01c0450 createLatencyReport(): initialize all advices to zero. 2014-07-08 17:11:56 +02:00
antirez 7fb90a670e LATENCY DOCTOR first implementation complete. 2014-07-08 17:05:56 +02:00
antirez 57e931debc Fix analyzeLatencyForEvent() MAD computation. 2014-07-08 12:56:45 +02:00
antirez 2a232dfa9a LATENCY DOCTOR: initial draft and events summary output. 2014-07-08 11:31:46 +02:00
antirez 19853db892 Latency: low level time series analysis implemented. 2014-07-07 15:00:01 +02:00
antirez b2604dc58c LATENCY SAMPLES renamed LATENCY HISTORY. 2014-07-07 12:35:24 +02:00
antirez f8934657b2 LATENCY RESET implemented. 2014-07-07 12:34:54 +02:00
antirez 2de5bab368 Better "final read from parent" algorithm in rewriteAppendOnlyFile*(. 
We now wait up to 1 second for diff data to come from the parent,
however we use poll(2) to wait for more data, and use a counter of
contiguous failures to get data for N times (set to 20 experimentally
after different tests) as an early stop condition to avoid wasting 1
second when the write traffic is too low.
 2014-07-05 15:42:24 +02:00
antirez 895409ca78 Log AOF diff sizes in MBs instead of bytes. 2014-07-05 12:37:44 +02:00
antirez 93cd75bbe0 aofChildWriteDiffData() better handling of free blocks. 2014-07-05 01:11:28 +02:00
antirez ac33c049c6 redis-benchmark: abort when all clients are disconnected. 2014-07-04 17:52:18 +02:00
antirez 20a0959964 Fine tuning of aofReadDiffFromParent() calls trigger. 2014-07-04 17:51:03 +02:00
antirez cc24447a1a Use amount of I/O not ops to trigger aofReadDiffFromParent(). 2014-07-04 16:03:46 +02:00
antirez 62f9d34c56 aofChildWriteDiffData(): write as much as possible. 2014-07-04 15:54:20 +02:00
antirez 30c42f12b0 Handle write failure in AOF parent -> child ACK. 2014-07-04 15:37:49 +02:00
antirez 75ef41058d Use a timeout when reading parent ack from AOF child. 2014-07-04 15:35:01 +02:00
antirez 2fa9fb647f Send AOF diffs from parent to child to improve latency. 2014-07-04 15:27:23 +02:00
antirez 57852ff207 Use fsync instead of aof_fsync in final AOF sync. 
This happens in the child process so we don't care about latency:
better to sync metadata as well.
 2014-07-04 11:51:30 +02:00
antirez a99766fda1 Fixed conditional for aof-write-pending-fsync latency event selection. 2014-07-02 17:42:29 +02:00
antirez f0f9d583ad Dependencies updated. 2014-07-02 17:04:14 +02:00
antirez 1f665d6e82 Cast void* to char* to avoid waring in latencyCommand(). 2014-07-02 16:56:08 +02:00
antirez e3c0125b70 Properly initialize min/max in latency.c. 2014-07-02 16:55:34 +02:00
antirez a887af34e1 latencyStartMonitor() modified to avoid warnings. 2014-07-02 16:53:44 +02:00
antirez 53ae687d59 Latency monitor: specialize delayed aof writes events. 2014-07-02 16:45:45 +02:00
antirez a53c734094 LATENCY GRAPH: filling under the curve is more readable. 2014-07-02 16:37:53 +02:00
antirez aa16f87b87 LATENCY GRAPH implemented. 2014-07-02 16:31:22 +02:00
antirez 6f20482a86 latencyTimeSeries structure max field type fixed. 2014-07-02 16:14:28 +02:00
antirez 9d4d810861 Free labels in freeSparklineSequence(). 2014-07-02 12:49:14 +02:00
antirez 1766d91697 LATENCY LATEST: add the max field. 2014-07-02 12:40:38 +02:00
antirez e173f7a0e3 Latency monitor trheshold value is now configurable. 
This commit adds both support for redis.conf and CONFIG SET/GET.
 2014-07-02 12:28:17 +02:00
antirez cc4df5a6b8 ASCII sparklines generation API. 2014-07-02 10:13:53 +02:00
antirez ed4980243a License added to latency.h. 2014-07-02 10:06:58 +02:00
antirez b809676a9e Latency monitor turned off by default. 
It is not a good idea to bloat the code with gettimeofday() calls if the
instance is working well, and turning monitoring on at runtime is a
joke.
 2014-07-01 17:23:59 +02:00
antirez de88bc63d5 Latency monitor: more hooks around the code. 2014-07-01 17:19:08 +02:00
antirez f35abe2ff5 Latency monitor: don't add new samples in the same second. 
Instead we update the old sample with the new latency if it is greater.
 2014-07-01 17:12:09 +02:00
antirez 83beaa886c LATENCY LATEST implemented. 2014-07-01 16:17:33 +02:00
antirez 753b707d2a Latency monitor: command duration is in useconds. Convert. 2014-07-01 16:09:02 +02:00
antirez 551bee86b4 LATENCY SAMPLES implemented. 2014-07-01 16:07:13 +02:00
antirez 8612e6de88 Latency monitor: collect slow commands. 
We introduce the distinction between slow and fast commands since those
are two different sources of latency. An O(1) or O(log N) command without
side effects (can't trigger deletion of large objects as a side effect of
its execution) if delayed is a symptom of inherent latency of the system.

A non-fast command (commands that may run large O(N) computations) if
delayed may just mean that the user is executing slow operations.

The advices LATENCY should provide in this two different cases are
different, so we log the two classes of commands in a separated way.
 2014-07-01 11:47:08 +02:00
antirez d7a07a2012 Latency monitor: basic samples collection. 2014-07-01 11:30:15 +02:00
antirez 0afb7a48c0 Fix Solaris compilation due to ctime_r() call. 
Introduced in Redis 2.8.10 because of a change in Sentinel.
This closes issue #1837.
 2014-06-30 16:29:12 +02:00
antirez 54157bc49e Test: find_available_port: check that cluster port is free as well. 
The function will only return ports that have also port+10000 free, so
that Redis Cluster instances can be executed at the returned port.
 2014-06-30 12:08:24 +02:00
antirez 612bc784fc Test: fix instances.tcl restart_instance abort error. 2014-06-30 12:06:27 +02:00