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autorehash in RedisArray constructor options Doesn't Work #294

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mocheng opened this issue Feb 2, 2013 · 6 comments
Closed

autorehash in RedisArray constructor options Doesn't Work #294

mocheng opened this issue Feb 2, 2013 · 6 comments
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@mocheng
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@mocheng mocheng commented Feb 2, 2013

I tried main branch and tag 2.2.2. It turns out that, as code below, autorehash doesn't trigger migration of keys among nodes.

$options = array(0;
$options['previous'] = $previous_server_list;
$options['autorehash'] = TRUE;
$ra = new RedisArray($server_list, $options);

Is there something missing in https://github.com/nicolasff/phpredis/blob/master/arrays.markdown#readme ?
@michael-grunder
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@michael-grunder michael-grunder commented Feb 3, 2013

Hey there,

I will try to replicate this problem for you tonight or tomorrow.

Cheers,
Mike
@nicolasff
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@nicolasff nicolasff commented Feb 17, 2013

Morgan,

The "autorehash" feature is tested and the tests are currently passing on master.
Reading a key from the $server_list can fail if the it is different from $previous_server_list. When this happens, the RedisArray object will look it up in the previous ring. When autorehash is enabled, this read will trigger a write to the new ring, so that subsequent reads are resolved in a single step.

Have a look at tests/array-tests.php, in the Redis_Auto_Rehashing_Test class. It writes 1,000 keys to a ring, then adds a node to the ring, reads back all the keys (triggering a rehash and migrating them one by one), before checking that they have all been migrated successfully.
@mocheng
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@mocheng mocheng commented Feb 21, 2013

Thanks for your reply. I'll try it out:)
@chaosue
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@chaosue chaosue commented Jul 29, 2013

not work！

the Redis_Auto_Rehashing_Test passed just because there's a Redis_Rehashing_Tes before it.
If you comment "run_tests('Redis_Rehashing_Test') " then run_tests('Redis_Auto_Rehashing_Test') fails.
@koda0611
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@koda0611 koda0611 commented Mar 7, 2014

I just tried this today, and it doesn't auto rehash. Can anyone verify that this is working?
michael-grunder added a commit that referenced this issue Mar 10, 2014
@michael-grunder
Fix autorehashing in RedisArray
f72a317 
This commit fixes auto rehashing in RedisArray as well as fixes
a couple of memory leaks found along the way

Addresses #442 and #294
@michael-grunder
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@michael-grunder michael-grunder commented Mar 10, 2014

Hey there, can you please test the branch hotfix/ra_autorehash. I believe this commit sorts it.
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5 participants
@nicolasff @mocheng @michael-grunder @chaosue @koda0611
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