Bharat Viswanadham created HDDS-4068:
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Summary: Client Retry for ipc.client.connect.max.retries when
first OM is down
Key: HDDS-4068
URL: https://issues.apache.org/jira/browse/HDDS-4068
Project: Hadoop Distributed Data Store
Issue Type: Bug
Reporter: Bharat Viswanadham
Right now retry logic on client to OM is, it will try connect to OM1, if it is
leader fine, else try with next OM and so on. If OM1, is down, client retries
for 50 times when ipc.client.connect.max.retries is set to 50 and
ipc.client.connect.retry.interval default to 1sec, I think here client -> OM,
should have its own retry policy, in this way if the first OM is down, to
complete request, user does not need to wait for 50sec.
As ipc.client.connect.retry.interval and ipc.client.connect.max.retries are
common configurations for RPC, creating a new default retry policy with smaller
values would be nice.
{code:java}
20/08/06 00:21:29 INFO ipc.Client: Retrying connect to server:
bv-oz-2.bv-oz.root.hwx.site/172.27.23.204:9862. Already tried 0 time(s); retry
policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=50, sleepTime=1000
MILLISECONDS)
20/08/06 00:21:30 INFO ipc.Client: Retrying connect to server:
bv-oz-2.bv-oz.root.hwx.site/172.27.23.204:9862. Already tried 1 time(s); retry
policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=50, sleepTime=1000
MILLISECONDS)
20/08/06 00:21:31 INFO ipc.Client: Retrying connect to server:
bv-oz-2.bv-oz.root.hwx.site/172.27.23.204:9862. Already tried 2 time(s); retry
policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=50, sleepTime=1000
MILLISECONDS)
20/08/06 00:21:32 INFO ipc.Client: Retrying connect to server:
bv-oz-2.bv-oz.root.hwx.site/172.27.23.204:9862. Already tried 3 time(s); retry
policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=50, sleepTime=1000
MILLISECONDS)
20/08/06 00:21:33 INFO ipc.Client: Retrying connect to server:
bv-oz-2.bv-oz.root.hwx.site/172.27.23.204:9862. Already tried 4 time(s); retry
policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=50, sleepTime=1000
MILLISECONDS)
20/08/06 00:21:34 INFO ipc.Client: Retrying connect to server:
bv-oz-2.bv-oz.root.hwx.site/172.27.23.204:9862. Already tried 5 time(s); retry
policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=50, sleepTime=1000
MILLISECONDS)
{code}
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